This code can be used to get some interesting information about your phone and battery. It showsfollowing 4 menus on screen:
Phone information
Battery information
Battery history
Usage statistics
*#*#7780#*#*
This code can be used for a factory data reset. It'll remove following things:
Google account settings stored in your phone
System and application data and settings
Downloaded applications
......................
It'll NOT remove:
Current system software and bundled applications
SD card files e.g. photos, music files, etc.
*2767*3855#
Think before you give this code. This code is used for factory format. It'll remove all files and settings including the internal memory storage. It'll also reinstall the phone firmware.
*#*#34971539#*#*
This code is used to get information about phone camera. It shows following 4 menus:
Update camera firmware in image (Don't try thisoption)
Update camera firmware in SD card
Get camera firmware version
Get firmware update count
*#*#7594#*#*
This one is my favorite one. This code can be used to change the "End Call / Power" button action in your phone. Be default, if you long press the button, itshows a screen asking you to select any option from Silent mode, Airplane mode and Power off.
You can change this action using this code. You can enable direct power off on this button so you don't need to waste your time in selecting the option.
*#*#273283*255*663282*#*#*
This code opens a File copy screen where you can backup your media files e.g. Images, Sound, Videoand Voice memo
*#*#197328640#*#*
This code can be used to enter into Service mode. You can run various tests and change settings in the service mode.
*#*#232339#*#* OR *#*#526#*#* OR *#*#528#*#*
WLAN test (Use "Menu" button to start various tests)
*#*#232338#*#*
Shows WiFi MAC address
*#*#1472365#*#*
GPS test
*#*#1575#*#*
Another GPS test
*#*#232331#*#*
Bluetooth test
*#*#232337#*#
Shows Bluetooth device address
*#*#8255#*#*
This code can be used to launch GTalk Service Monitor.
Codes to get 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, Changelist number
Codes to launch various Factory Tests:
*#*#0283#*#* - Packet Loopback
*#*#0*#*#* - LCD test
*#*#0673#*#* OR *#*#0289#*#* - Melody test
*#*#0842#*#* - Device test (Vibration test and BackLight test)
*#*#2663#*#* - Touch screen version
*#*#2664#*#* - Touch screen test
*#*#0588#*#* - Proximity sensor test
*#*#3264#*#* - RAM version
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