Services (they are also engineering, are secret) are used for quick access to various functions, often even hidden. There are universal codes for Android, and there are those that are only available for certain device models.
I recently published an article in which I talked about how to increase the volume of sound on Android . To do this, you can use special software or use one of the secret codes. Now I will discuss the most popular of them, so you can implement many system settings.
Popular secret codes for Android smartphones
Why are these codes called “secret”? They are simply not needed by most ordinary users, they are not published in the instructions for smartphones. First of all, “secret codes” are intended for engineers and programmers to perform various tests.
To use any of the service codes, you must enter it in the dialer. On tablets, you will need to download a third-party application to make calls – enter “Dialer” in the Google Play search engine and load the “caller” you like.
- * # 06 # – information about the IMEI smartphone
- * # * # 4636 # * # * – information on Wi-Fi, battery and usage statistics
- * # * # 8255 # * # * – Testing the Google Talk service
- * # * # 7594 # * # * – if you enter this combination, after pressing it, after pressing the power button, the smartphone will turn off immediately, with no menu options
- * 44336 # * # * – information about PDA, CSC, construction time and other data about the smartphone
- * 232338 # * # * – Wi-Fi MAC address
- * # * # 7780 # * # * – immediate Restoration of factory settings (hard reset). Removes only applications
- * 2767 * 3855 # – immediate factory reset, but unlike the previous method, Android is completely reinstalled
- * # * # 1234 # * # * or * # 12580 * 369 # – information about the device software
- * # * # 1111 # * # * – FTA software version information
- * 2222 # * # * – information about the FTA hardware version
- * 0283 # * # * – Feedback test
- * # * # 0 * # * # * – screen test
- * # 0 * # – testing various components: screen, camera, speakers, vibration, microphone and others
- * # * # 0673 # * # * or * # * # 0289 # * # * – test the sound
- * 084 # * # * – vibration and backlight test
- 232339 # * # * or * # * # 526 # * # * – test the wireless network
- * * * * * 1472365 # * # * – GPS test
- * # * # 1575 # * # * – detailed GPS test
- * * * * * * Bluetooth test
- * 232337 # * # * – displays the Bluetooth address
- * 2663 # * # * – version of the touch screen
- * 2664 # * # * – Testing the touch screen
- * # * # 0588 # * # * – Test the motion sensor
- * 7262626 # * # * – GSM signal test
- * # 197328640 # – switch to service mode
- * 3264 # * # * – RAM version
- * # * # 8351 # * # * – activation of the voice registration registration mode
- * # 8350 # * # * – disable voice registration registration mode
- # * 5376 # – delete all SMS messages
- * # 2222 # – Android firmware version
- # * 2562 #, # * 3851 #, # * 3876 # – restart your smartphone, tablet
- * # 34971539 # – full information about cameras and their software update
- * * * * 273283 * 255 * 663282 * – * – quick backup of multimedia files
- * # * # 4636 # * # * – secret menu for Motorola devices
- ** 05 *** # – Unlock PUK on Sony
- 3845 # * 855 # – service menu on LG G3
- * # 0011 # – service menu for Samsung Galaxy S4
- ## 778 (+ connection button) – displays the EPST menu (for Samsung)
- ## 3424 # – diagnostic mode (for HTC)
- ## 3282 # – EPST (for HTC)
- ## 8626337 # – VOCODER (for HTC)
- ## 33284 # – technical details of the network status (for HTC)
- ## 7738 # – protocol version (for HTC)
Basically, these are the most basic and universal (secret) service codes for tablets and smartphones in Android, but all manufacturers add support for their own, so if you are interested in codes for a specific device, download the Secret Codes application . This will be discussed below.
Android service codes in secret codes
Secret Codes will scan the system for technical codes and display the result in the list. Just click the code you are interested in and go to the selected option.
Unfortunately, this method has a disadvantage: on some devices, the application cannot find one service code, and some not all. But on devices I tested everything was fine and reviews on Google Play are almost all positive.
