Android Service Codes

Service (also known as engineering, they are also secret) codes are used for quick access to various functions, often hidden. There are universal codes for Android, but there are those that are available only for certain device models.

To use any of these, go to the phone dialer, open the dial and enter the code.

If you want to use them on the tablet, download the third-party application for making calls.

* # 06 # - IMEI of your smartphone information
* # * # 4636 # * # * - information about Wi-Fi, and battery usage statistics
* # * # 8255 # * # * - Test the service Google Talk
* # * # 7594 # * # * - if you enter this sequence, then after that, when you press the off button, the smartphone will be immediately turned off, no menu suggestions
* # * # 44336 # * # * - information about the PDA, CSC, assembly time, and other data on your smartphone
* # * # 232338 # * # * - MAC address of the Wi-Fi
* # * # 7780 # * # * - immediate reset to factory settings (Hard Reset). It removes only applications
* 2767 * 3855 # - immediate reset to the factory, but in contrast to the previous method of Android completely reset
* # * # 1234 # * # * # * 12580 or * 369 # - information about firmware devices
* # * # 1111 # * # * - information about the FTA software version
* # * # 2222 # * # * - information about the FTA at hardware version
* # * # 0283 # * # * - Test Loopback
* # * # 0 * # * # * - Screen Test
* # 0 * # - Testing of the various components: the screen, camera, speaker, vibration, microphone, and other

* # * # 0673 # * # * or * # * # 0289 # * # * - Test Audio
* # * # 0842 # * # * - Test vibration and backlight
* # * # 232339 # * # * or * # * # 526 # * # * - Test the wireless network
* # * # 1472365 # * # * - Test GPS
* # * # 1575 # * # * - detailed test GPS
* # * # 232331 # * # * - Test Bluetooth
* # * # 232337 # * # * - Bluetooth-show address
* # * # 2663 # * # * - version of the touch screen
* # * # 2664 # * # * - Test the touch screen
* # * # 0588 # * # * - Test the motion sensor
* # * # 7262626 # * # * - GSM signal test
* # 197328640 # - switch to service mode
* # * # 3264 # * # * - version of RAM
* # * # 8351 # * # * - activate voice dialing registration regime
* # * # 8350 # * # * - turn off the voice dialing registration regime
* # 5376 # - Deletes all SMS
* # 2222 # - the firmware version of Android
* # 2562 # * # 3851 # * # 3876 # - restart smartphone, tablet
* # 34971539 # - full information about the cameras and update their firmware
* # * # * 273 283 * 663 282 * 255 # * # * - rapid creation of backup media
* # * # 4636 # * # * - the secret menu for Motorola devices
** 05 *** # - unblocking PUK on the Sony
# 3845 * 855 # - service menu on the LG G3
* # 0011 # - service menu on the Samsung Galaxy S4
## 778 (+ the call button) - displays EPST-menu (for the Samsung)
## # 3424 - Diagnostic Mode (for HTC)
## 3282 # - EPST (for HTC)
## 8626337 # - VOCODER (for HTC)
# 33284 ## - Technical data of network status (for HTC)
## # 7738 - protocol revision (for HTC)

Secret Codes application will scan your system for service codes and displays the result in the form of a list. You should simply click on the code of interest to engineering and you will be redirected to the desired option.

Unfortunately, this method has a drawback: on some devices, the application can not find a single security code, and some is not all. But on the devices I tested everything was fine, and reviews in Google Play almost all positive.