Each phone always comes with a secret code, it applies to a wide range of mobile phone brands with various OS (Operating System), including Android phones.
Here's his the code :
* # * # 4636 # * # *
This shows four following menu :
* Phone Information
* Battery Information
* History of Batteries
* Statistics
Reset the data
* # * # 7780 # * # *
This will remove the following:
* Google accounts stored in your phone
* System and application data and settings
The above code will not remove:
* System software and bundled applications at this time
* SD card files such as photos, music files, etc.
Note: After you write this code, the system will ask for confirmation from you. This provides an opportunity for you to think again before doing data deletion.
Factory Reset
* 2767 * 3855 #
Think before you write this code. This will remove all files and settings including the internal memory storage. It will also reinstall the phone firmware.
Note: Once you give this code, there is no way to cancel the operation unless you remove the battery from the phone. So think twice before writing this code.
Information on camera
* # * # 34971539 # * # *
This code shows the following menu:
* Update the firmware of the camera in image (Do not try this option)
* Update camera firmware in SD card
* Get camera firmware version
* Get firmware update count
WARNING ! ! !
Do not use the first option, the camera will stop working and you need to take your phone to service center to reinstall camera firmware.
Code to change the "End Call / Power"
* # * # 7594 # * # *
This code can be used to change the "End Call / Power" on your phone keypad. So, if you press the button for a few moments, it will display a screen asking you to select options from the Silent mode, and Turn off Airplane mode.
You can change the action code. You can activate this directly from the button so you do not have to waste your time in selecting the option.
Open the file copy screen where
* # * # 255 * 273 283 * 663 282 * # * # *
Service log mode
* # * # 197328640 # * # *
You can run various tests and change settings in the service mode (safe mode).
Test Code: WLAN, GPS and Bluetooth
* # * # 232 339 # * # * - WLAN test
* # * # 526 # * # * - WLAN test
* # * # 528 # * # * - WLAN test (Use "Menu" to launch a variety of test)
* # * # 232 338 # * # * - Displays the MAC address of WiFi
* # * # 1472365 # * # * - GPS test
* # * # 1575 # * # * - Another GPS test.
* # * # 232 331 # * # * - Bluetooth test
* # * # 232337 # * # - Displays the Bluetooth address
Launch GTalk Service Monitor
* # * # 8255 # * # *
Code to get the firmware version information
* # * # 4986 * 2650468 # * # * - PDA, Phone, H / W, RFCallDate
* # * # 1234 # * # * - PDA and Phone
* # * # 1111 # * # * - FTA SW Version
* # * # 2222 # * # * - FTA HW Version
* # * # 44336 # * # * - PDA, Phone, CSC, Build Time, numbered list of changes.
Codes to launch various test
* # * # 0283 # * # * - Loopback packet
* # * # 0 * # * # * - LCD test
* # * # 0673 # * # * or * # * # 0289 # * # * - Melody test
* # * # 0842 # * # * Device test (Vibration, and Backlight test)
* # * # 2663 # * # * touch-screen version
* # * # 2664 # * # * Touch screen-test
* # * # 0588 # * # * - Proximity sensor test
* # * # 3264 # * # * - RAM version