Lg Screen Test Code? Best 191 Answer

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Virtually everyone uses a smartphone these days — but did you know there are some secret codes to unlock information on your phone that might one day come in handy? Open your dial pad, enter the secret code, press the call button and be amazed at the displayed function. Some features are only available specifically for Android or iPhone, and some service providers have even disabled the secret code. You just have to try to find out!

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Android phones are great devices for those who want a lot of customization options and control over their device’s operating system. Your Android device has pre-installed and automatically activated features that ensure the security and functionality of your smartphone.

There are also hidden features and Android hacks that you can activate by entering the so-called USSD (Unstructured Supplementary Service Data) codes.

Table of Contents

Here is a list of Android secret codes that you can use to unlock hidden actions on your smartphone.

What do USSD codes do?

USSD codes are hidden codes that give you access to certain features of your mobile phone without going through your settings. These feature codes look like a combination of numbers and symbols, and usually begin with an asterisk (*) or hashtag (#).

Android secret codes are programmed into your SIM card or mobile number and allow your smartphone to communicate with your mobile operator. With these codes, you can get things done faster on your smartphone, thereby becoming a more efficient user.

In this list you will find the most common secret codes that work on most Android phones and some of them even work on iPhones. However, depending on your phone’s manufacturer, the version of Android your phone is running, your region, and the phone apps, some codes may not work. This could be the case if you are using a dual SIM smartphone. There are also codes that are specific to different carriers and different phone models, so they only work for them.

The only way to find out if a specific code works for you is to use it on your Android phone.

How to use USSD codes on your Android device

The USSD codes can actually simplify your daily smartphone use. You no longer have to scroll through your settings to look for a specific feature. Instead, you need to follow these quick steps.

Open the dialer of your smartphone (phone app). It’s usually on your main screen.

Enter the USSD code you want to use.

Some codes will load automatically, others require you to select the “Call” button.

Below is a list of USSD codes for Android that you should try. We have divided all secret codes into categories according to their functions.

Codes to improve the security of your device

These USSD codes are the most important of them all. Use these security codes when your phone is not working properly and you suspect that a third party is interfering with your phone. Using them will either calm you down or act faster when you find out hackers are tampering with your device.

*#06# : An important USSD code, especially when you are buying a new or used Android device. You can use it to view your smartphone’s IMEI number and verify that it matches the one on the box or the back of the phone.

: An important USSD code, especially if you are buying a new or used Android device. You can use it to view your smartphone’s IMEI number and verify that it matches the one on the box or the back of the phone. *#0*# : Enables general test mode. You can use this code to test various functions of your smartphone. The things you can select from the test menu include frontcam test, LED test, sub key, touch test, run barcode emulator test, check your device version, RGB test and grip sensor test.

: Activates the general test mode. You can use this code to test various functions of your smartphone. The things you can select from the test menu include frontcam test, LED test, sub key, touch test, run barcode emulator test, check your device version, RGB test and grip sensor test. *#*#232338#*#* : Displays the WiFi MAC address. The Media Access Control address (MAC address) is a unique address of your device that can be used to identify it while it is connected to a network. If you suspect a data breach, use this code to view the MAC address and verify that it matches your network.

: Displays the WiFi MAC address. The Media Access Control address (MAC address) is a unique address of your device that can be used to identify it while it is connected to a network. If you suspect a data breach, use this code to view the MAC address and verify that it matches your network. *#*#4986*2650468#*#* : A USSD code showing your phone firmware information, the PDA (Personal Digital Assistant), RF (Radio Frequency), call date, hardware, your smartphone model and the Manufacture Date ( or RFCallDate). You can determine if any of this information has changed, which could be causing your system to malfunction.

: A USSD code that shows your phone’s firmware information, including PDA (Personal Digital Assistant), RF (Radio Frequency), call date, hardware, your smartphone model, and the date of manufacture (or RFCallDate). You can determine if any of this information has changed, which could be causing your system to malfunction. *#3282*727336*# : Use this code to view your storage and system information. If you use this code, you will see the data usage details on your screen. If you notice unusual details, it could be evidence that someone is using your phone remotely.

: Use this code to view your storage and system information. If you use this code, you will see the data usage details on your screen. If you notice unusual details, it could be evidence that someone is using your phone remotely. *#*#34971539#*#* : A code that allows you to view your camera information. This includes the number of cameras on your phone, firmware version information, camera modules and more. You can also use this code to determine if someone has tampered with your camera firmware.

: A code that allows you to view your camera information. This includes the number of cameras on your phone, firmware version information, camera modules and more. You can also use this code to determine if someone has tampered with your camera firmware. *#*#1472365#*#* : This USSD code will trigger a quick GPS test. Checking if your Android GPS is working properly can help you in a number of situations such as: B. if you lose your phone or if someone steals it. If your GPS is on, you can use this data to locate your device.

: This USSD code will trigger a quick GPS test. Checking if your Android GPS is working properly can help you in a number of situations such as: B. if you lose your phone or if someone steals it. If your GPS is on, you can use this data to locate your device. *#*#4636#*#*: A useful code for showing battery, WiFi status and WiFi information. In addition to battery and Wi-Fi tests, you can use this code to find out who accessed your apps based on the displayed usage statistics.

Codes for efficient phone management

The USSD codes below represent actions that you can quickly perform on your phone. These can also be used as security codes, as you can use them to quickly turn off your phone or erase sensitive information before it falls into the wrong hands.

*#*#7594#*#* : A USSD code to manage the behavior of your smartphone’s power button. Normally, to turn off your phone, you have to press and hold the power button and then select from the menu to turn off your phone. You can use this code to change this order. For example, you can set your phone to turn off quickly without even using the menu.

: A USSD code to manage the behavior of your smartphone’s power button. Normally, to turn off your phone, you have to press and hold the power button and then select from the menu to turn off your phone. You can use this code to change this order. For example, you can set your phone to turn off quickly without even using the menu. *#*#7780#*#* : Use this code to factory reset your phone. Factory formatting will erase all personal data, all application data (e.g. removing your Google account settings stored on your phone) and apps from your device, but will not reset the firmware. This is a good option if you’re looking to sell your phone without the extra hassle.

: Use this code to factory reset your phone. Factory formatting will erase all personal data, all application data (e.g. removing your Google account settings stored on your phone) and apps from your device, but will not reset the firmware. This is a good option if you’re looking to sell your phone without the extra hassle. *2767*3855# : The code to hard reset your Android device. Only use this code after backing up all your data or in an absolute emergency as it will wipe your phone clean and erase all your data. This code will also erase and reinstall the firmware.

: The code to hard reset your Android device. Only use this code after backing up all your data or in an absolute emergency as it will wipe your phone clean and erase all your data. This code will also erase and reinstall the firmware. *#*#273282*255*663282*#*#* : You can try to use this code to quickly back up your media files before doing a factory or hard reset.

: You can try to use this code to quickly back up your media files before doing a factory or hard reset. *#*#197328640#*#*: With this code you can turn on the engineering/service mode (or the service menu), which allows you to run various tests and change the settings of your Android device.

Codes to run factory tests on your android device

Do you experience lags and unusual delays when using your smartphone? Or do you just want to check that all parts of your device are working as they should? Try using these hidden codes to test different systems in your smartphone.

*#*#2664#*#* : A USSD code to perform touch screen tests.

: A USSD code to perform touch screen tests. *#*#0*#*#* : Use this code for an LCD test.

: Use this code for an LCD test. *#*#526#*#* : Run a WiFi test.

: Run a Wi-Fi test. *#*#232331#*#* : A code to perform a Bluetooth test.

: A code to run a Bluetooth test. *#*#7262626#*#* : This code activates a field test.

: This code activates a field test. *#*#0842#*#* : This code allows you to perform a vibration test and a backlight test.

: This code allows you to perform a vibration test and a backlight test. *#*#0283#*#* : A code to run a packet loopback test.

: A code to run a packet loopback test. *#*#0588#*#* : Use this code for a proximity sensor test.

: Use this code for a proximity sensor test. *#*#0673#*#* or *#*#0289#*#* : These two codes work for audio and melody testing.

or : These two codes work for audio and melody tests. #0782*#: A USSD code that enables a real-time clock test.

Codes to learn important information about your phone

The following USSD codes will help you to quickly access various information about your mobile phone and network. With these codes you can check the functionality of the apps and parts of your phone and make sure everything is running smoothly.

#*#426#*# : A USSD code that you can use to run a Google Play diagnostic. It displays the information related to the Google Play services.

: A USSD code that you can use to run a Google Play diagnostic. It displays the information related to the Google Play services. *#0228#: This code shows your battery status.

This code indicates your battery status. *#*#2663#*#* : Displays a touchscreen version of your Android device.

: Displays a touchscreen version of your Android device. *#*#44336#*#* : Use this code to view your phone’s build time and change the list number.

: Use this code to view your phone’s build time and change the list number. *#*#3264#*#* : The code shows your RAM version.

: The code shows your RAM version. *#*#1111#*#* : Use this code to verify your FTA software version information.

: Use this code to check the version information of your FTA software. *#*#2222#*#* : This code shows your FTA hardware version.

: This code indicates your FTA hardware version. *#*#232337#*# : Displays the address of the Bluetooth device.

: Displays the address of the Bluetooth device. *3001#12345#* : Use this code to access field mode, which gives you information about local networks and cell towers.

: Use this code to access field mode, which gives you information about local networks and cell towers. *#*#225#*#*: Find out what calendar dates are stored on your device.

Codes for call management and billing information

The codes below allow you to access your phone’s call management features and set up features such as call forwarding and call waiting. There are also specific codes you can enter to view your billing information or have it sent to you as an SMS.

*#67# : A secret code to verify call forwarding on your phone. Find out if your calls are forwarded when your line is busy and what number they are forwarded to.

: A secret code to verify call forwarding on your phone. Find out if your calls are forwarded when your line is busy and what number they are forwarded to. *#61# : This code shows you how long it takes before your calls are forwarded to the message center.

: This code shows you how long it takes before your calls are forwarded to the message center. #31# : A code that disables your caller ID.

: A code that disables your caller ID. *31# : This code recovers your caller ID.

: This code recovers your caller ID. *43# : Use this code to activate call waiting.

: Use this code to activate call waiting. #43# : A code to disable call waiting.

: A code to disable call waiting. *5005*7672# : A USSD code to learn your SMS message center number.

: A USSD code to learn your SMS message center number. *3282#: Use this code to receive an SMS message with your billing information.

Use the Android secret codes to become a pro user

This list contains the best Android codes that work on most devices. However, depending on your phone model and the carrier you are using, you may find that certain codes or actions are not available on your phone. You can try searching online for the codes specific to your phone model and testing them. After all, the beauty of owning an Android phone lies in the many ways you can modify it, even without rooting.

Aside from obvious features like a touchscreen and biometric sensors, the modern smartphone has a bunch of cutting-edge hardware in the form of various sensors that help your device sense the environment around it. And if you have a Samsung phone, chances are you’ve built in a handy feature that lets you verify that those sensors are 100 percent working. Unknown to many Samsung fans, most Galaxy phones have a secret diagnostic mode built in that can be accessed simply by entering a little-known code. Best of all, this feature is extremely easy to access and is a handy way to test drive a new or used phone to ensure it’s in perfect working order before committing to a purchase. Don’t miss: Gamify diagnostics on your Android phone with this cool little app

Accessing the Secret Diagnostics Menu Before we begin, it’s important to note that this feature may not be available on your device. Certain carriers, notably Verizon and Sprint, have been known to block code-based diagnostics mode on their Samsung smartphones and tablets, although newer Sprint phones like the Galaxy S6 appear to have restored this functionality. To get the ball rolling, just open your Samsung’s phone app. From there, enter *#0*# using the dialpad and the phone will immediately go into its secret diagnostic mode. Note that the process is automatic, so you don’t have to tap the green call button to enter the command. So if you enter the code and nothing happens, the feature will be disabled on your device. Below are the following tests that you can run on your Samsung handset after entering the code and entering the HwModuleTest mode. Please note that some screenshots may be missing due to security reasons or the nature of the tests.

Red, Green, and Blue Screen Selecting any of these three tests will examine your handset’s red, green, and blue color spectra and will display the corresponding colors brightly when selected. To return to the main diagnostics page, simply tap the screen to exit.

Receiver & Vibration To check if your phone’s receiver is working properly, tap the Receiver button to start testing. This should bring you to a white screen accompanied by a clearly audible dial tone. When you’re happy, just double-tap the back button to return to the main test page. “Vibration” tests your phone’s vibration motor. Your screen will go black as soon as you tap the Vibration button, accompanied by a constant vibration. Tap the screen once to end this test and return to the main test screen.

Dimming Tapping Dimming takes you to a red, green, and blue screen. The screen will then alternately darken and lighten as you tap the screen. To return to the main test page, press the volume up key.

Mega Cam Tap Mega Cam to test your main camera. Use the volume buttons to zoom in and out, then tap the camera button at the bottom of the screen to take a photo. Please note that the flash is enabled by default and your test photo will also be saved in your gallery. When you’re done testing the camera, tap the back button to go to the main diagnostics screen.

Sensor When you tap on the “Sensor” button, you will get a test page for a variety of sensors – namely accelerometer, proximity sensor, barometer, light sensor, gyroscope, magnetic sensor, HRM and fingerprint scanner. I’ll go through all eight of these submenus in separate sections below.

1. Accelerometers Accelerometers are important sensors used to detect the phone’s orientation, mainly measuring linear acceleration of movement. To check functionality, either tap “Picture Test” to check for landscape-to-portrait transitions, or tap “Graphics” to measure how well the sensor detects motion by shaking your device up and down .

2. Proximity Sensor This tests your device’s proximity sensor, which is responsible for turning off your screen when your phone is held to your face during a phone call to avoid accidental touches. To test this feature, simply cover the top of your phone with your hand. The screen should now turn green if the proximity sensor is working, so uncover the screen to turn the screen white and continue to the next test.

3. Barometer This sensor is primarily responsible for tracking altitude and helps provide more accurate GPS readings. Testing for this feature is straightforward – just tap “Barometer Self-Test” to start an automated test that will let you know immediately if it’s working or not.

4. Light sensor As the name suggests, this sensor is responsible for detecting the ambient light. Tap “Light Sensor” to start the test, then expose your phone to light of different brightness levels. Three levels are to be registered alternately, starting with “Level 1” for subdued light up to “Level 3” for extremely bright light.

5. Gyroscope The gyroscope measures the rotation of your device and works with the accelerometer to paint a complete picture of overall movement. There are several ways to test your handset’s gyroscope – you can run a test manually by tapping either “Display” or “Graph,” or you can turn your phone around and see the results either in numbers or through a linear graph read off. Alternatively, you can automatically test your device’s gyro function by selecting “Gyro Selftest” for both the x and y axes.

6. Magnetic Sensor This tests the functionality of your device’s magnetic sensor. Tapping “Self-Test” will start an automatic test to see if your device is successful or not. If you want to test manually, tap “Power Noise Test” and then run a magnet around your phone. For example, on the S8, the magnetic sensor is located in the top left corner of the phone, as evidenced by the magnetic spikes in the graph when a magnet is near that area.

7. HRM This tests your smartphone’s heart rate monitor and can be done in two ways. From the HRM tab, tapping the Home button takes you to the HRM Test page. From there, you can test your handset’s heart rate monitor by placing your finger on the sensor. If you want to do the “HRM EOL” test, you need to put your phone on a flat service and keep it completely still, otherwise it will register multiple errors.

8. Fingerprint Sensor This tests your fingerprint scanner. Tap on “Normal Scan” to start the test, which takes place automatically to verify that all components are working properly. Tapping on “Sensor Info” will bring up details like the firmware version for you to look through.

Touch Your phone’s touchscreen is by far the most important component to test, as it’s generally required to access and interact with your handset. To test this feature and check for dead zones, tap the touch button to get started. Now follow the squares on the screen to complete the box marked X, which should turn green. Once done, you will be automatically taken back to the main test page. Alternatively, you can also return to the main test page by pressing the volume up button.

Sleep & Speaker Tap the “Sleep” button to test your device’s sleep function. This should immediately put your phone into sleep mode. When you’re done, wake up your phone as usual and you’ll be automatically taken back to the main diagnostics page. Tap the Speakers button if you want to test your handset’s audio output, which in turn will play a sample song for you to listen to. Once you’ve verified that your speakers are good, simply tap the Speakers button again to end the test.

Sub Key “Sub Key” tests your hardware keys along with the virtual home button if you have a Note 8 or S8. Pressing each button changes the screen color to verify its functionality. Tap the exit button in the center of the screen to return to the main diagnostics page.

Front Camera To test your front camera, just tap the Front Camera button to get started. This will pull up your front camera and let you take a selfie as usual. Remember that all the test photos you take are automatically saved in your mobile phone’s gallery. Therefore, delete them if they are intended solely for testing purposes. When you’re done testing your selfie camera, double-tap the back button to return to the main test page.

Grip Sensor Your Samsung phone probably has sensors that detect your grip. To test this feature, tap the Grip Sensor button, then follow the prompts and release your grip when prompted. You should get a blue screen labeled “Working” if the grip sensor is working properly. When you’re done with the test, double-tap the back button to return to the main screen.

LED & Low Frequency The LED test verifies the functionality of your device’s LED notification light. Running the test is straightforward – just tap the LED button and then tap the screen to change the color of the LED from red to green and finally blue. Tap the screen one last time to end the test and return to the main diagnostics page. Low Frequency will test your phone’s handset and tapping the button to start testing will take you to the Low Frequency Test page. From there, tap 100Hz, 200Hz, and 300Hz, and put your ear to the phone’s earpiece each time you select a frequency to check for a faint buzz. Once you’ve completed the tests, you can return to the main diagnostics page by double-tapping the back button.

Barcode Emulator Test If you want to test your phone’s ability to generate barcodes correctly, tap Barcode Emulator Test. This will bring you to a page with different barcodes. From there, simply tap each barcode and scan it with a barcode scanner to ensure it reads correctly. When you’re done testing, double-tap the back button to return to the main diagnostics page.

Hall IC, MST and MLC tests The Hall IC sensor detects magnetic fields and is mainly used to detect magnetic flip covers to automatically put the phone to sleep when a magnet in the flip cover touches the phone . The test itself doesn’t do much and just gives confirmation that the Hall IC is working properly. MST, which stands for Magnetic Secure Transmission, allows devices to temporarily read your phone as a credit card. This sensor is essential when using payment services such as Samsung Pay. MLC, on the other hand, is a technology used in fingerprint sensors. There isn’t much to test in this area, which seems geared more towards developers to tinker with.

Iris Camera Test Last but not least, the “Iris Camera Test” tests the infrared iris camera used to unlock your device. Tapping the button will pull up your iris camera for you to align your eyes with, and it will immediately close and return to the main diagnostics page once your iris has been successfully scanned.

Exiting HwModuleTest mode Once you have finished running your diagnostic tests, you can now exit HwModuleTest mode. To do this, simply double-tap the back button to return to your phone’s dialer, then exit as usual. You can now enjoy the rest of your day knowing that everything is fine with your beloved device! Don’t Miss: The Best New Features in Samsung’s Oreo Update

Cracked Glass vs. LCD Repair

We know how hard it is to pick up a phone or tablet after a fall to find broken glass or a cracked LCD screen, but what’s the difference between repairing the glass and repairing the LCD? It depends on how a display is assembled (some devices have LED or OLED displays, but for the purposes of this article we’ll just write LCD). Most cell phone manufacturers make displays where the glass and LCD components are bonded together into one display: the glass sits on top of the LCD screen. The LCD also has an integrated digitizer component that allows the touch function to work. With both a glass repair and an LCD repair, the entire display is replaced; However, there is a price difference between a glass repair and an LCD repair as good LCDs retain their value regardless of the glass.

What do we mean by intrinsic value of LCDs? With glass and LCD assemblies, the LCD has value if it still works even after the glass is cracked over it. If the LCD still works, it can be used again. Companies buy broken glass with working LCDs in order to refurbish them: they separate the glass from the LCD and digitizer, replace the glass with a new piece on the old LCD, and sell the refurbished screen elsewhere. Therefore, repair shops can sell good, working LCDs to refurbishment companies. Selling broken glass with good LCDs helps offset the cost of glass repairs, which in turn makes it cheaper for you to repair your glass!

However, if the digitizer or LCD is also damaged in a fall, that screen will no longer have any value as it cannot be refurbished. Repair shops cannot sell defective LCDs to refurbishment companies; Therefore, they cannot offset the cost of an LCD repair. For this reason, if the LCD or digitizer is damaged, repair shops often charge a small additional fee to make up for this loss. Repair shops that don’t have an additional charge for an LCD repair usually increase their glass repair price to compensate for the loss from damaged LCDs. If they have a price, that means everyone pays more to cover the costs of customers who have damaged LCDs and customers who only have broken glass. That’s why TCR separates the price of glass and LCD repairs for you! If you only have broken glass, you only need to worry about replacing the broken glass.

Here is more information on the symptoms of broken glass versus damaged LCDs or digitizers.

Broken glass

When the glass of your phone or tablet shatters, the screen will crack or chip. If only the glass is broken, the device may still work and you can use it normally. In this case, probably only the glass needs to be replaced. To avoid further damage to your device, it is best to have it repaired quickly. For example, if liquids seep through the cracks, it can cause permanent damage to the LCD.

Touchscreen not working

Many people may continue to use their touch screen with broken glass and delay fixing the glass on their devices. However, if the touchscreen is unresponsive, it could be a sign of more serious damage to the device’s digitizer, which is built into the LCD screen.

Pixelated screen

A pixelated screen can indicate LCD damage. This would appear as a blob of multicolored dots, one or more discoloration lines, or a rainbow colored screen. For many people, these colors are an easy way to tell that their LCD is broken and that they should get it fixed.

Dropping your phone isn’t the only reason you end up with a pixelated screen. Over time, your screen’s LCD can fail with regular use. This also happens on other devices besides your smartphone or tablet. Pixelation can also occur on televisions and computers. In this case, people usually decide to buy a new device. Luckily, with an LCD repair, you can repair the device without having to replace it.

Black screen

A black screen or black dots on your smartphone or tablet is an indication of a damaged LCD. With a bad LCD display, a phone often turns on and makes noise, but there is no clear picture. This doesn’t necessarily mean that another part of the phone is damaged, and simply replacing the screen will get it working again. Sometimes it can mean that a battery or other internal component is damaged. It is best to have a highly skilled phone repair technician diagnose the fault so that the appropriate repair can be made.

Fortunately, whether you broke the glass or damaged the LCD, your mobile device can be repaired. Stop by or call TCR: Triangle Cellular Repair at (919) 263-2699 for free diagnostics and fast, affordable cell phone repairs in the Chapel Hill area. We’re here to help!

You should be able to access engineering mode by entering a special code into your dialpad. If not, you need to download the MTK app.

Although I’ve been an Android user for almost a decade now, I only learned about Engineering mode a few years ago. Since then I’ve used it multiple times to optimize my current and former Samsung primary drivers.

Read on to learn how to enter engineering mode in Android phone and everything you can do with it.

How to access engineering mode

There are three different ways to do this:

Method 1: Use your dial pad

The dial pad is the most popular method to access the hidden menu. You need to enter special codes that differ by brand.

Samsung

Open the dial pad and enter *#0011#

A window will appear stating that you have entered “Service Mode”.

Click on Key Input (in the right corner of the screen)

Enter the ‘Qo’ key

LG

On LG smartphones, you must provide your manufacturer build/model number along with your unique code.

Go to Settings > About phone to find your build number

Dial 3845#*build number#

Huawei

Dial *#*#2846579159#*#*

xiaomi

Dial *#*#6484#*#*

Sony Xperia

Sony Xperia does not have technician mode, but the step to access the equivalent (menu service) is similar to the others.

Enter the codes *#*#4636#*#* or *#*#7378423#*#* into your dial pad.

HTC

Dial *#36446337#

Method 2: Download MTK Engineer Mode App

If for some reason you don’t want to switch to engineering mode via the above method, you can download MTK engineering mode app from Google Play Store.

Once installed, open it to access the secret menu.

What can you do in engineering mode?

Engineering mode has advanced settings that even allow you to configure your handset’s hardware components. However, most of the people use it to optimize the performance of their mobile phone.

Below is everything you can use it for:

1. Boost your audio

You may want a little more sound from your phone’s speakers.

With the advanced settings in the hidden menu, you can increase your audio levels beyond the maximum level available, and you can tweak your audio settings to block out background noise as well.

You can also improve the sound input of your microphone.

2. Improve internet speed

Stuck with a less-than-great ISP? Engineering mode allows you to change your network band, which may result in faster internet.

3. Change your IMEI code

An IMEI number is a unique 15-digit code used by service providers to identify devices connected to their network. It helps you track your phone if it is stolen.

If you rooted your smartphone, you may have lost your IMEI number. You can change it again via the settings in engineering mode.

4. Change your Mac address

MAC addresses are unique 12-digit codes that LANs use to identify handsets. You can change your MAC address from the hidden menu. You can bypass control lists on servers and routers.

5. Improve your wireless connection

With the advanced settings in engineering mode, you can increase your WiFi range. All you have to do is change your band and frequency settings. Changing your band and frequency settings also improves your signal strength.

6. Adjust the picture format

Most Android devices save images as JPEG, PNG, and JPG files. However, if you switch to engineering mode, you can change the file format.

You can also set your ISO, change the frame size and frame rate of videos.

7. Improve battery life

Engineering mode lets you stop apps running in the background. So less power is consumed.

8. Adjust the hardware settings

If your device is rooted, you can change its hardware acceleration. This improves the graphics.

9. CPU performance

The hidden menu allows you to view your CPU performance. More importantly, when your phone is rooted, you have the option to overclock it.

10. Use recovery mode

This BIOS-related setting lets you control your phone without accessing the Settings app. Some of the options that Recovery Mode offers are a software upgrade and a system reset.

related reading

FAQ

Below I have answered some frequently asked questions.

What is the code * * 4636 * *?

It is one of the many Android secret codes that only work on Samsung phones.

Typing it into the keypad will display your IMEI number, wireless connection status, the network you’re connected to, and information about your battery life.

Regarding the battery information that is displayed, you know the temperature of your device as well as the battery voltage and the type of battery technology used.

Here’s the deal:

Although many Samsung phones pack Snapdragon chips, some of them have Exynos processors. The code ** 4636 ** only works if your phone contains a Snapdragon chip.

What are Samsung secret codes?

Below are all the codes for Samsung devices:

*#06# – Look at your IMEI number

Look at your IMEI Number *#0*# – Test RGB (Red Blue Green), Receiver, Vibration, Touch Sensitivity, Speaker, Camera Sensors, S-Pen, Audio Loopback and Android Version.

Test RGB (Red Blue Green), Receiver, Vibration, Touch Sensitivity, Speaker, Camera Sensors, S-Pen, Audio Loopback and Android Version. *#0808#- Change USB settings

AlterUSB Settings *#0228# – Look at your battery status ADC, RSSI reading etc.

View your battery status ADC, RSSI value etc. *#0011# – Open your GSM status information

Open your GSM status information *#2222# – Look at your hardware version

View your hardware version *#1234# – View software version such as PDA, CSC, MODEM, etc. You can also use it to check BL, CSC and AP, CP of your Samsung device

View software version such as PDA, CSC, MODEM, etc. Also, you can check BL, CSC and AP, CP of your Samsung device. * # 9090 # – Look at your diagnostic configuration

Look at your diagnostic configuration *#9900#- OpenDump mode

OpenDump Mode *#12580*369# – View software and hardware information and manufacturing date of your Samsung mobile device

View software and hardware information and date of manufacture of your Samsung mobile device *#0283#- Open Audio Loopback Control

Open Audio Loopback Controls * # 34971539 # – Download any camera firmware

Download any camera firmware # 7465625 * 638 * # – Open network lock keycode

Open Network lock keycode *#2663# – Open TSP and TSK firmware update

Open TSP and TSK Firmware Update *#272IMEI#* – Look at your product code

Look at your product code *#272*IMEI# – Look at your buyer code, CSC code (Country/Carrier Specific Product).

Look at your buyer code, CSC (Country/Carrier Specific Product) Code *#0283#- Open Audio Loopback Control

Open audio loopback control *# 1111# – Open software version

Open software version *#34971539# – Open camera firmware menu

Open C mera firmware menu *43# [dial]- Turn on call waiting

Enable call waiting #43#[dial]- Disable call waiting

Disable call waiting *#43#[dial]- Show status of call waiting

Show waiting status *135#[dial] – request own phone number (sometimes does not work)

Request own number (sometimes does not work) **04* [old PIN]*[new PIN] * [new PIN] # – change device PIN (replace old and new handset PIN)

[old PIN]*[new PIN] [new PIN] Change device PIN (Replace your handset’s old and new PIN) *#004* [number] #- Redirect call to a specific number (“[number]” would be a phone number)

[Number] Forward call to a specific number (“[Number]” would be a phone number) *#004#- Query call forwarding status

Querying the status of call forwarding #004#- Switch off call forwarding

Call diversion ##004#- Delete call diversion

Below are all the codes for Touch Wiz used on Samsung devices older than 5 years:

*#0*# / *#*#0*# – Test RGB (Red, Blue, Green), Receiver, Vibration, Touch Sensitivity, Speaker, Camera Sensors, S-Pen, Audio Loopback, Software Version, etc.

Test RGB (Red, Blue, Green), Receiver, Vibration, Touch Sensitivity, Speaker, Camera Sensors, S-Pen, Audio Loopback, Software Version, etc. *#06# – Show your IMEI code

Show your IMEI Code *#03# – NAND Flash Serial Number

NAND Flash serial number *#80# – Test touchscreen noise (do not press power button)

Test the touchscreen noise (do not press the power button) *#251# – DisableWake-lock

isableWake-lock *#251#- Enable wake-lock

Enable wake lock *#526# – WiFi engineering mode

WLAN engineering mode *#528# – WLAN engineering mode

WLAN engineering mode *#745# – Open the RIL dump menu

Open RIL dump menu *#746# – Open debug dump menu

Open debug dump menu *#0011# – enter service mode

Enter service mode *#0228# – Check your battery status

Check your battery status * # 0283 # – TestAudio package loopback

TestAudio Pack Loopback *#0289# – Test your audio/speaker

Test your audio/speakers *#0514# – SysDump (system dumps, logs, etc.)

SysDump (system dumps, logs, etc.) *#0588# – Test your proximity sensor

Proximity Sensor *#0589# – Start light sensor test mode

Light sensor test mode *#0673#- Audio/speaker test (same as *#0289#)

Audio/Speaker test (same as *#0289#) *#0782# – Real time clock test

Real Time Clock Test *#0842#- Vibration test

Vibration test *#1575# – OpenGPS control menu

OpenGPS control menu *#2263#- HF band selection

HF band selection *#2663#- Check your touchscreen FW and version

Check your touch screen FW and version *#2664#- HW touch screen test

HW Touch Screen Test *#3264# – Check your RAM (version number)

Check your RAM (version number) *# 7769# Test your proximity sensor

Test your proximity sensor *#7284# – phone utility and USB driver and connection settings

Phone Utility and USB Drivers and Connectivity Settings *#7353#- Runs 12 types of functional tests

Performs 12 types of functional tests *#7594# – Enter factory mode / turn on long press shutdown

Switch to factory mode / turn on shutdown when long press *#8888# – OpenService mode

OpenService mode *#9900# – Open system dump mode

Open System Dump Mode *#9999#- Software Versions (AP, CP, CSC, FTA SW)

Software Versions (AP, CP, CSC, FTA SW) *#2222#- Hardware Version

Hardware version *#1234# – Show SW version PDA, CSC, MODEM

View SW Version PDA, CSC, MODEM *#0228#- Check your battery diagnostics

Check your battery diagnostics *# 9090# – Enter service mode

Start service mode *#301279# – Opens the HSDPA/HSUPA control menu

Open the HSDPA/HSUPA control menu *#4238378# – Check your G CF configuration

CF configuration *#197328640# *#*#197328640#*#* Activation of test mode for service activities (also shows the manufacturing date of Samsung devices)

Activate test mode for service activities (also shows the manufacture date of Samsung devices) *#232331#- Test your Bluetooth test

Test your bluetooth test *#232337# – Check your bluetooth address

Check your Bluetooth address * # 232338 # – WiFi MAC address and PS mode

WiFi MAC address and PS mode *#232339# – WiFi engineering mode test (TX and RX mode) (same as *#526*)

WLAN engineering mode test (TX and RX modes) (same as *#526*) *#8736364#- Open OTA update screen

Open OTA update screen *#7412365# – Camera Firmware Default (Front/Rear Camera Firmware)

Camera Firmware Default (front/rear camera firmware) *#7465625# – Open lock status settings

Open lock status settings * # 22558463 # – Reset total call time

Reset Total Call Time *#12580*369# – Major Revision (AP, CP, CSC, RF Calibration, HW Revision)

Major Version (AP, CP, CSC, RF Calibration, HW Revision) *#3282*727336*# – System and storage information and data usage statistics

System and storage information and data usage statistics * 2767 * 3855 # – Full coverage of your system

Completely reset your system *#*#7780#*#* – Reset your handset to factory settings

Factory reset your handset *#*#7594#*#* – Turn on direct power off without showing the power menu by pressing and holding the power button

Turn on direct power off without showing the power menu by holding the power button *#*#232338#*#* – Shows you your WiFi MAC address

Shows you your WiFi MAC address *#*#4986*2650468#*#* – PDA, phone, hardware, RF call date (or manufacture date) firmware information

PDA, Phone, Hardware, RF Call Date (or Manufacture Date) Firmware Info ##778 [Dial] – Opens the EPST screen

Check out more smartphones

Final Thoughts

Hope you found this article helpful. The tips above work on any Android device, whether it’s a flagship like the HTC U12+, a mid-ranger like that, or a tablet like the Samsung Galaxy Tab S6.

No one would blame you for confusing engineer mode with developer mode/developer options as both are similar.

If you want to switch to advanced settings mode in your android smartphone, you may need to use engineering mode code.

In general, Engineering mode, often known as Engmode, is an advanced additional menu on most Android devices. It is separate from the rest of the basic phone settings. Many engineering mode features and settings are not available through standard mobile settings or apps. Engineering mode can also be used to perform various performance tests and modifications.

So if you want to enable engineering mode of this phone as well then engineering mode code given below will help you.

To learn more about what Android engineering mode is, what it can do, and how to use it, read on.

Engineering mode top feature

It’s a really handy program that allows you to customize and optimize your Android smartphone beyond the default settings. It’s similar to accessing preinstalled features on your device. Engineering mode can also be used for excellent performance.

Engineering mode has multiple functions, you can enter it with engineering mode code of specific android phone.

Change the LTE band and other network settings as needed.

Increase the volume of the device’s audio signal.

Make hardware and camera settings your own.

Increase the range and signal strength of your WiFi network as well as the performance of your battery.

Bluetooth can be customized.

Change your device MAC address and IMEI code on Android.

Management of the CPU

recovery mode

Without rooting, you may have access to some root features.

Change network settings, including the LTE band.

How to enter Android engineering mode?

Note that there is often a normal way to get into engineering mode. However, the technique to enter this mode may differ depending on factors such as the brand of the device since the brand is linked to the hardware type of the smartphone.

That’s why we’re going to show you how to get into engineer mode on smartphones from the most popular manufacturers.

Different manufacturers set different technician mode codes. Find the phone company below and use the correct technician mode code to access advanced phone settings.

Samsung engineering mode code

To switch to Engineer mode on Samsung mobile devices, dial Samsung Engineer mode code *#0011# or follow the steps below to learn more details.

How to use Samsung Engineer mode?

Enter *#0011# on the dial pad. A message will appear informing you that you have entered “Service Mode”. Select “Key Input” (in the right corner of the screen). Finally, enter the “Q0” key

LG engineering mode code

The engineer mode of these LG phones has a flaw when it comes to access code. It will also differ between LG branded models.

In most cases, all you need to do is enter “3845#*” along with the model number and the (#) sign. You need to type something like this:

LG Engineer Mode Code: 3845#*Model Number#

Realme engineering mode code

Realme smartphone engineering mode code is *2767*3855#. If you want to know more hidden data of your Realme smartphone, use Realme secret code.

Xiaomi (Mi) engineering mode code

Entering technician mode on the Xiaomi smartphone brand is easy. The first and most important step is to dial this Xiaomi Engineering Mode code: *#*#6484#*#*.

You can also find many more Mi secret codes that could be useful to get more information about the phone.

Oppo engineering mode code

Use this Oppo engineering mode code *#0011#. For more information, see the Oppo secret code that will help you learn various phone details.

Sony engineering mode code

You can access the engineering mode of the Sony smartphone model by using one of the two codes below.

You can use either *#*#4636#*#* or *#*#7378423#*#*.

Huawei engineering mode code

Technician mode can be accessed on virtually all Huawei smart mobile devices by entering the following code: *#*#2846579159#*#*.

Engineering mode code for HTC mobile phones

You can easily access HTC Engineering mode by dialing this code *#36446337#.

Activate Mediatek Engineering mode

The manufacturer determines how to enter engineering mode. MediaTek processors can be found in a variety of devices.

To enable Mediatek engineering mode, tap seven times on the build number in the info section of the settings to enable developer options.

Clicking the button seven times will bring up a notification confirming that Developer Options has been successfully enabled. Then, in developer mode, you get access to engineering mode, which is exclusive to MediaTek processors.

If that doesn’t work, you can use your mobile device to switch to technician mode by using one of the following MTK technician mode codes:

*#59#

*#22458#*

*#110*01#

*#35789#*

*#3698741#

*#3646633*#

*#*#4636#*#*

*#*#13411#*#*

*#*#2846579#*#*

*#*#889988#*#*

*#*#7378423#*#*

*#*#3646633#*#*

Otherwise, you can also download the MTK Engineering app from the Play Store. Now you can run this application and change or test the functionality of the smartphone.

We hope that after reading this entire post, you were able to enable Engineering Mode on your smartphone. Several Android engineering mode codes are available. So by visiting our website ussdcode.in you can access ussd codes and secret codes of all settings without having to remember hundreds of USSD numbers.

Below we have shared some common questions that might be useful.

What is engineer mode used for? On Android phones there is a hidden menu called Engineer mode. It’s not the same as developer mode, but it gives us access to information about the phones’ hardware, as well as the ability to change some of the device’s default settings. What is the engineering mode switch? Every Android device contains a hidden engineering mode. The engineering mode code will help give you complete control over your phone. It’s similar to your Android’s primary data center. Here you will find all your hardware settings. This allows you to access Advanced Setup from the MTK phone’s Engineering Mode menu, often referred to as SERVICE MODE.

Disclaimer: If you do not have sufficient knowledge, we recommend using one of these codes to change the setting. We accept no responsibility in the event or in any form. So be careful when using these engineering codes.

Many mobile phone users are interested to read this: MPL referral code, Meesho referral code and Upstox referral code.

Wondering how to access LG Smart TV service menu? Then you’ve come to the right place!

Most TV models have a service menu, also known as a hidden or secret menu. The menu opens an engineering mode that allows users with advanced knowledge to perform certain hidden functions or diagnose TV problems.

Unfortunately, the service menu is hidden and not widely known to most people. This is because some of the menu functions can cause problems with the TV or even damage it. But no worry! By pressing certain buttons in the correct order on your remote control you can access the service menu.

Below we look at the key combination you need to activate the hidden LG menu. We’ll also look at various codes that you may need to run some routines in the secret menu.

How to access LG service menu with original remote?

The procedure for entering the service menu on an LG TV differs depending on the remote control used. Below is a step-by-step guide on how to do this using the original LG remote control:

Make sure you’re using your original remote – you have a better chance of getting to the hidden menu than using universal or third-party remotes.

Switch the input source to TV on your LG TV and select one of the channels – other input modes may work, but TV has a better chance.

on your LG TV and select one of the channels – other input modes may work, but the TV has a better chance. Press and hold the “MENU” button on the remote control and the LG TV menu button on the TV control panel. Depending on your TV model, you may need to replace the “MENU” button with “HOME”, “SETTINGS” or even the “OK” button for the remote control.

” button on the remote control and the button on the TV control panel. Depending on your TV model, you may need to replace the ” ” button with ” “, ” ” or even the ” ” button for the remote control. Release the buttons as soon as the menu appears on the TV screen. For example, some TV models may ask you for a password.

The password code 0000 works with most TVs. If it doesn’t, you can try other codes like 7777, 0413, 8743, 8878, or 8741.

works with most TVs. If not, you can try other codes like , , , or . After entering the correct password, you will be able to access the service menu and make changes as you wish.

NOTE: Before making any changes in the LG hidden menu, make a note of the initial settings. If you have problems, you can restore the default settings.

How to access LG TV service menu with Magic remote control

What if you use the magic remote control? Can you get into the service menu?

The LG Magic Remote is a smart remote control that offers universal remote control capabilities and several other additional features. These include mouse-like controls, voice command, click-wheel functionality, auto-discovery for devices, and more.

Here’s how to access the hidden LG TV settings menu with the Magic Remote:

When your TV is on, the green three-dot button will blink quickly about seven or eight times to show resolution overlay information.

to display resolution overlay information. Press the mute button three times to bring up a quick information menu

To bring up a quick information menu Move the cursor over the program setting and press the ‘ 1 ‘ button on the remote control five times to bring up the statistics menu

” button on the remote control to enter the statistics menu. Hover the cursor over the channel setting and press “1” five times to bring up the HDMI diagnostics menu

Aside from these menu options, you can try the hidden menu sequence for the original remote to see if it works with your wand remote.

How to use the service menu

The LG service menu gives you access to several features that are otherwise hidden. For example, you can access network settings, perform a factory reset, or even run diagnostics on your LG TV.

Below is a detailed overview of some of these features.

Factory reset in LG service menu

Follow these steps to factory reset your LG TV from the service menu:

First, use your original remote control to boot the TV into the service menu.

Go to the “Public Display Settings” option.

” option. In the display settings, scroll down until you reach the “Factory Reset” option.

” option. Press the “OK” button and follow the on-screen instructions to complete the reset.

Change network settings in LG TV service menu.

To access the network settings of your LG Smart TV via the service menu, do the following:

Launch the service menu with your original LG remote control.

Go to “IP Control Set UP” in the menu options and make the desired changes.

If you use a magic remote control, you can access the hidden network settings with the following steps:

Launch the default settings menu on your TV.

Go to “Network Settings” and press OK.

‘ and press OK. When the network settings screen appears, press the code 82888 on your remote to launch the hidden IP control setup options.

Final Thoughts

The secret service menu of your LG TV is primarily reserved for technicians when testing or repairing TVs. However, with the information above, you can access advanced features not offered by the default menu settings.

For example, you can run diagnostics, access advanced network, picture and sound settings, and even restore factory settings.

However, before you access the service menu, it is worth noting that running some of the routines may cause software glitches on your TV. Therefore, it is possible that your TV will be damaged and even void the warranty.

Therefore, you should be careful not to run any unfamiliar routines. If possible, save the current settings (by writing them down or taking a photo) so that you can restore them in an emergency.

More about LG TVs

Do you want to find out some secret Android codes and their uses? If yes, then this article is for you!

Now:

Why do Android phones have secret codes?

When manufacturers process their electronic products, each product has to go through a quality check where the devices are tested and analyzed. This is done to ensure that the products meet the quality standard set by the customer, company or manufacturer.

But that’s not all.

Android devices, especially smartphones and tablets, undergo various performance tests to ensure that the product works and has no problems.

The disadvantage is …

It will be time consuming and sources are limited unless they have dedicated testing means. Therefore, the “Android Secret Codes” only exist for this purpose.

These or hidden menus allow you to let your Android phone perform specific tasks. In addition, you can also use these codes to verify various information about the device.

Sounds pretty cool right?

So if you’re here for those reasons, then you’re in luck. We have listed a lot of dialer codes and all Android secret codes, general codes, hidden menus and Samsung secret codes and HTC secret codes for Android diagnostics.

Must read:

How to clean your phone completely

29 incredible Android hacks you’ve probably never heard of

However, you must note the following:

Some of these codes are universal, some are not. Some of the codes become unusable for some phones, while some are only for certain manufacturers.

Additionally, it’s best to remember that some of these codes can and will erase and factory reset your entire smartphone. Oops!

Be careful and read the description.

So, without further ado, let’s jump to some great Android secret codes, hidden menus, and dialer codes.

What are USSD and MMI codes?

USSD and MMI codes are Android codes that start with a pound or hashtag symbol. These icons are updated when Android releases a new version. Also, some smartphone manufacturers have their own USSD and MMI codes.

Typically, USSD (Unstructured Supplementary Service Data) codes are used to communicate with a smartphone and a mobile network operator. So, for USSD codes to work, you must always stay connected to your carrier.

MMI (Man Machine Interface) codes, on the other hand, allow you to access interesting information about your smartphone, such as IMEI number, hidden menu, repair services and more.

Common Android Codes

Here are all the popular Android dialer codes that anyone with an Android phone or tablet could use. Below is the downloadable file of common android codes.

Common Android secret codes

Description Dialer codes Battery status *#0228# Data creation menu *#273283*255*3282*# Data usage status *#3282*727336*# OTA update menu *#8736364# RF band selection *#2263# Diagnostic configuration *#9090 # USB 12C mode control *#7284# USB Protocol Control *#872564# Debug Dump Menu *#746# System Dump Mode *#9900# NAND Flash Serial Number *#03# Real Time Clock Test *#0782# Light Sensor Test *# 0589# Quick test menu *#7353# Run from emergency call screen to unlock PUK code **05***# Most common android secret code dialers

Android secret codes

If you want more sophisticated codes that can do various tasks or give you more information about the device, here are all the Android secret codes you could use.

*#*#4636#*#* is the most commonly used code. In this hidden menu you can get a whole range of information.

Dialer Codes Description *#*#4636#*#* Displays information about phone, battery and usage statistics *#*#7780#*#* Factory data reset – (wipes app data and apps only) *2767*3855 # Reinstalls the phones firmware and wipes all your data *#*#34971539#*#* Information about the camera *#*#7594#*#* Directly turns off the power button once the code is activated *#*#273283* 255*663282*# *#* Fast backup of all your media files *#*#197328640#*#* Enable service activity test mode *#*#232339#*#* OR *#*#526#*#* WiFi tests *# * #232338#*#* Displays the WiFi Mac address *#*#1472365#*#* For a quick GPS test *#*#1575#*#* Another type of GPS test *#*# 0283#*# * Packet Loopback Test *#*#0*#*#* LCD Display Test *#*#0673#*#* OR *#*#0289#*#* Audio Test *#* #0842#*#* Vibration and backlight test *#*#2663#*#* Display touch screen version *#*#2664#*#* Touch screen test *#*#0588#*#* Proximity sensor test * #*#3264#*#* Ram Version *#*#232 331#*#* Bluetooth test *#*#7262626#*#* Field test *#*#232337#*# Displays Bluetooth device address *#*#8255#*#* For monitoring Google Talk service *# *#4986*2650468#*#* PDA Phone Hardware RF Call Date Firmware Info *#*#1234#*#* PDA Phone Firmware Info *#*#1111#*#* FTA Software Version *#*#2222#*#* FTA hardware version *#*#44336#*#* Displays the build time and change list number *#06# Displays the IMEI number *#*#8351#*#* Enabled Voice dialing logging mode *#*#8350#*#* Disables voice dialing logging mode ##778 (+Call) Opens EPST menu Android secret codes

Samsung secret codes

One of the most searched secret codes is for Samsung phones. So if you are looking for Samsung secret codes, you are in luck. Here is a complete list of Samsung phone secret codes.

Description Dial codes View IMEI number *#06# View current firmware *#1234# Diagnostic and general settings mode #*#4636#*#* Factory reset *#*#7780#*#* To view the product code *2767*4387264636 # GPS test settings *#*#1472365#*#* Service mode main menu *#*#197328640#*#* SW and HW info *#12580*369# Bluetooth address *#232337# ADC reading *#0228 # HF Band Selection *#2263# Ciphering Info *#32489# Bluetooth Test Mode *#232331# Diagnostic Configuration *#9090# WLAN Test Mode *#232339# Vibration Motor Test *#0842# WLAN MAC Address *#232338# USB I2C Mode Control * #7284# Audio Test Mode *#0673# General Test Mode *#0*# USB Logging Control *#872564# GCF Configuration *#4238378# Real Time Clock Test *#0782# Audio Loopback Control *#0283# LBS Test Mode * #3214789650# GPS control menu *#1575# RIL dump menu *#745# Data creation menu *#273283*255*3282*# Proximity sensor test mode *#0588# Camera firmware update *#34971539# Light sensor test mode *#0589#W LAN Engineering Mode *#526# Debug Dump Menu *#746# NAND Flash S/N *#03# Software Version Info *#44336# System Dump Mode *#9900# Create Data SD Card *#273283*255*663282 *# Data Usage Status *#3282*727336* # TSP/TSK Firmware Update *#2663# Shutdown on End Call TSK Remap *#7594# Camera Firmware Menu *#7412365# and *#*#34971539#*# * WiFi engineering mode *#528# Melody test mode *#0289# OTA update menu *#8736364# Test history *#07# HSDPA/HSUPA control menu *#301279# Quick test menu *#7353# View phone lock status *#7465625 # Auto Answer Selection *#272886# Samsung Secret Codes – Android Secret Codes

HTC secret codes

If you are also looking for the HTC secret codes, here is the complete list.

Dialer Codes Description #*#4636#*#* Device Information Utility *#*#7262626#*#* Field Test *#*#3424#*#* HTC Functional Test Utility *#*#1111#*#* View Software Version *#*# 2222#*#* View Hardware Version *#*#232338#*#* WiFi Mac Address *#*#232337#*# Bluetooth Mac Address *#*#1472365#*#* GPS Test *# *# 1575#*#* GPS Test 2 *#*#232331#*#* Bluetooth Test *#*#0*#*#* Display Test *#*#2663#*#* Touchscreen Version *#*#2664# *#* Touch Screen Test #*#759#*#* Debug UI *2767*3855# HTC Secrets Factory Format – Android Secrets

Huawei secret codes

For Huawei phones, these are the codes that work for them.

The most popular code for Huawei phones is “*#*#2846579#*#*” which opens the project menu.

Dialer Codes Description *#*#2846579#*#* Project Menu *#*#2664#*#* Touch Screen Test *#*#4636#*#* Phone Information, Usage and Battery *#06# IMEI Number *# 0 *# Enter service menu *#*#34971539#*#* Detailed camera information *#*#273282*255*663282*#*#* Backup all media files *#*#232339#*#* WiFi test *# *#197328640# *#* Enable test mode for service *#*#0842#*#* Backlight test *#*#2664#*#* Touch screen test *#*#0842#*#* Vibration test *# *#1111#*#* FTA software version *#12580*369# Full software and hardware information *#9090# Diagnostic configuration *#872564# USB logging control *#9900# System dump mode *#301279# HSDPA/HSUPA control menu *#7465625# View phone lock status * #*#232338#*#* Displays the WiFi MAC address *#*#1472365#*#* or *#*#1575#*#* GPS test *#*#232331#*# * Bluetooth test Huawei Secret Codes Android Secret Codes

Frequently asked questions about Android secret codes

How to enter secret codes on Android? To enter any of the Android secret codes, all you have to do is dial the code in your phone’s dialer app. How to enter secret codes on Android tablets? To enter secret codes on any android tablet, all you have to do is go to your tablet’s dialer app and enter the codes. How do I know if the Android secret codes are working? After entering the secret codes on your phone’s default dialer, if it works, you will be prompted with a modal or the phone will inform you about it. Otherwise, if nothing happens, it means the phone doesn’t support the code. Why are Android secret codes not working on my phone? Not every Android secret code works on every phone. Some are universal codes, some are not. Is there a code to test my phone’s IR blaster? No, there is no code to test your phone’s built-in IR blaster. However, you can test your phone’s IR blaster simply by installing an IR blaster app. After installation, you will need a second phone with a front camera. Point your phone’s IR blaster at your second phone’s front camera. Observe the display of the second phone. When the display changes color, your phone’s IR blaster is working. What is the Android secret code to test the touch screen? Open the dialer and dial *#*#2664#*#* like a regular phone number to test your Android phone’s touchscreen.

Learn more about Android secret codes

Want to learn more about Android secret codes? Would you like to be an expert on this? Then we strongly recommend that you read this book.

All in One Android Setup Code: Android Phone Secret Code and Tips & Tricks Hindi in English

Android Phone Secret Code and Tips & Tricks by Rahul Tendulkar

This book gives you everything you need to know about secret codes for Android mobile devices. It also includes various tips and tricks to make yourself the master of Android secret codes.

Suggested reading:

50 Incredible Android Hacks You’ve Never Heard Of

Android Rooting Secrets

Conclusion

These were all the most common, hidden and secret codes for Android devices. These codes are intended to provide manufacturers with a faster way to verify that their smartphones and tablets are working as intended. These codes are certainly not for public use, so we advise extreme caution if you don’t know what you’re doing.

As always, if you have any questions or problems about these codes, feel free to reach out to us in the comments.

Latest posts:

Did you know that Android has a secret menu for customizing your phone’s system UI? It’s called System UI Tuner and it can be used to customize an Android gadget’s status bar, clock, and app notification settings.

Introduced in Android Marshmallow, this experimental menu is hidden but not difficult to find. Once you achieve it, you will wish you had known sooner.

That’s why we’re going to show you how to access Android’s secret menu. Here are the steps to unlock.

Unlock System UI Tuner

To enable this feature, swipe down from the status bar to access your quick settings panel, then press and hold the settings gear icon in the top-right corner. If done correctly, your Android phone will vibrate and a message will appear that you have successfully added the System UI Tuner to your settings.

Here you can make nifty changes to the user interface, e.g. For example, you can choose which icons are displayed in the status bar or display the battery status while charging. You can also set your watch to display hours and minutes and seconds if you wish.

You can show the Do Not Disturb switch with the volume bar or disable the volume shortcut for it.

Another useful toggle is the power notification control. This allows you to set different notification levels for each app, ranging from level 0 (block all notifications) to level 5 (most important).

Currently there is also an option to enable split screen by swiping from the app overview icon.

How to disable the system UI tuner

Note that these system UI tweaks are experimental. As the System UI Tuner warning states:

“System Tuner gives you additional ways to tweak and customize the Android UI. These experimental features may change, break, or disappear in future releases. Proceed with caution.”

To remove the System UI tuner and any changes you’ve made, swipe down from the status bar again to access quick settings, then press and hold the settings gear icon again until your phone vibrates.

A prompt will then appear asking if you want to “Remove System UI Tuner from Settings and stop using all of its features?” Select “Remove” to delete it.

Alternatively, you can just go to the System UI Tuner menu, tap the three vertical dots in the top-right corner, and then select Remove from Settings.

Bonus: Secret Android Codes You Can Try

For more hidden Android tricks, dial these numbers (as if you were on a call) and then press the call button:

Android Codes

There are some iPhone features hidden in apps, widgets and the control center. There are a number of secret things you can do with the dialer that most iPhone users might not know about. Mobile devices have long used USSD (Unstructured Supplementary Service Data) codes. They look like a series of numbers with asterisks and hashtags that need to be entered like a phone number.

This service works on both older phones like the iPhone SE and newer models like the iPhone 13 and 13 Pro. It can connect any GSM phone directly to your service provider’s computers and give you access to “secret” features on your phone. Some features are specific to certain carriers, but most work independently of the telco.

Let’s examine some useful and interesting secret dialer codes. To use them, open the Phone app and tap on the keyboard:

Find IMEI

To find your iPhone IMEI number, type *#06#, the information will be displayed automatically. All cell phones have an International Mobile Equipment Identity (IMEI) number that is unique to each device. This number may be requested when attempting to unlock your iPhone for use on a different network. This number can also be useful if your iPhone is lost or stolen so that the handset can be identified.

Hide Caller ID

You can hide your caller ID by using a USSD code before dialing the phone number you want to call. First enter #31# (if you are in the US dial *67) and then enter the person’s number including the area code. Tap the green button to make the call.

Divert incoming calls

Incoming calls can be diverted to another number, e.g. B. a landline number or another mobile number when you are busy on another call. This can also come in handy when your iPhone is unreachable or you can have them redirected when you don’t want to answer or respond.

To transfer calls if you don’t answer dial *61*, to transfer calls if your iPhone is unreachable dial *62* and to transfer calls if your iPhone is busy dial *67*. Enter the number you want to divert to, then tap #. Then tap the dial button and you should get a confirmation. If that doesn’t work, search your network for alternative codes. To disable these services, enter #61#, #62#, or #67# depending on the original code and tap the dial button again. If you want to know the current status of any of these services, dial *#61#, *#62# or *#67#.

Activate call waiting

Call waiting gives you the opportunity to answer a new call if someone tries to get through while you are already on the call. Enter *43# and tap the dial button. Then tap Discard when the confirmation screen appears. To end call waiting, dial #43#.

Prevent outgoing calls

If you give someone your iPhone, you might want to prevent them from using the device to make calls. To do this, dial *33* and then enter a PIN followed by # – this prevents anyone else from turning the feature off. Tap the “Choose” button and tap “Close” when you get the confirmation. To deactivate the code lock, dial #33*your PIN#.

Start field test mode

If you want to access technical information about your iPhone’s cellular signal and connection, you can use the hidden field test mode. Primarily designed for technicians and engineers, it allows you to check your network. However, one of its main uses has been dropped in iOS 15 – the ability to display the strength of your signal as a numerical value. It includes details about local area networks and cell towers in the area, and Apple has been busy improving its appearance for the past few years.

First, swipe down from the right side of the iPhone screen to show Control Center and turn off Wi-Fi. Then launch the phone app and dial 3001#12345#. You will be taken to the field test screen, which is split into two tabs: Dashboard and All Metrics. Most of the information contained in these screens is probably not of interest. However, if you’re using iOS 13 or iOS 14, you should tap All Metrics and after scrolling down, tap Serving Cell Meas – that’s under the LTE heading. Look for rsrp0 and rspr1 (indicate the towers closest to you). Displays cellular signal strength in decibel milliwatts. To indicate a strong signal, the number must be around the -40 mark. When the number reaches -100, you are in an area with a very poor signal.

Note that some of these codes are specific to certain regions/countries, so not all of them may work for you.

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Did you know that many Android phones allow you to enter codes to access hidden features? These range from viewing information to accessing test menus to resetting your phone. These are easy to enter – just go to the dialer app and enter the codes below.

Remember to read and understand the description of each code before entering it as it is possible to reset your device and cause data loss with some of these codes. Please use responsibly!

We’ve got three lists of codes for Samsung and HTC phones here, provided by a community effort on Reddit. One list of Samsung codes is for newer phones like the Galaxy S5 and S4, while the other is for older phones. You may find some codes on both lists.

Samsung (for Galaxy S4 and above)

Code Description *#1234# to check the software version of the phone. * # 12580 * 369 # to check software and hardware information. *#0228# Battery status (ADC, RSSI reading) *#0011# Service menu *#0283# Loopback test *#06# imei *#03# nandflashheaderread *#0808# USB service *#9090# Service mode *#7284# FactoryKeystring * #34971539# Camera firmware default *#1111# Service mode *#0*# Test mode

Samsung (for Galaxy S3 and earlier)

Code Description *#*#4636#*#* View information about phone, battery and usage statistics *#*#7780#*#* Factory data reset phone – only erases application data and applications *2767*3855# It’s complete on erase Your mobile phone will also reinstall the phone’s firmware *#*#34971539#*#* Displays full information about the camera *#*#7594#*#* Changing the behavior of the power button – Enables direct power off once the code activates is *#* #273283*255*663282*#*#* For a quick backup of all your media files *#*#197328640#*#* Enable test mode for service activities *#*#232339#*#* OR *#*# 526 #*#* WiFi tests *#*#232338#*#* Displays the Wi-Fi Mac address *#*#1472365#*#* For a quick GPS test *#*#1575#*# * Another GPS type test *#*#0283#*#* Packet loopback test *#*#0*#*#* LCD display test *#*#0673#*#* OR *#*# 0289#*#* Audio Test *#* #0842#*#* Vibration and Backlight Test *#*#2663#*#* Shows d ie touch screen version on *#*#2664#*#* Touch screen test *#*#0588#*#* Proximity sensor test * #*#3264#*#* Ram ve rsion *#*#232331#*#* Bluetooth test *#*#7262626#*#* Field test *#*#232337#*# Displays Bluetooth device address *#*#8255#*#* To monitor Google Talk service * #*#4986*2650468# *#* Firmware Info for PDA, Phone, Hardware, RF Call Date *#*#1234#*#* Firmware Info for PDA and Phone *#*#1111#*#* FTA Software Version *#* #2222# *#* FTA hardware version *#*#44336#*#* Displays build time and change list number *#06# Displays IMEI number *#*#8351#*#* Enables voice dialing logging mode *#*# 8350#* #* Disables voice dial logging mode ##778 (+Call) Brings up the Epst menu

HTC

Code Description *#*#3424#*#* HTC function test program. *#*#4636#*#* HTC info menu *#*#8255#*#* Launch GTalk Service Monitor ##3424# Diagnostic mode. ##3282# for EPST. ##8626337# for VOCODER ##33284# field trial menu. ##786# Reverse logistics support. ##7738# Protocol revision. ##775# Unknown ##2539# Unknown

Thanks for checking out the lists and let us know if you find them helpful! You can reach us on Twitter @mobilefun.