Android Mobile Secret Codes

Android Mobile Codes
##4636##	It shows following 4 menus on screen
	Phone information
	Battery information
	Battery history
	Usage statistics
27673855#	It'll remove all files and settings including the internal memory storage. It'll also reinstall the phone firmware
##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 application
	SD card files e.g. photos, music files, etc.
##197328640##	This code can be used to enter into Service mode. You can run various tests and change settings in the service mode.
WLAN, GPS and Bluetooth Test Codes:
##232339## OR ##526## OR ##528##	WLAN test (Use "Menu" button to start various tests)
##232338##	Shows WiFi mac
##232337#*#	Shows Bluetooth device address
##1575##	Another GPS test
##232331##	Bluetooth test
##1472365##	GPS test
##273283255663282##*	This code opens a File copy screen where you can backup your media files e.g. Images, Sound, Video and Voice memo.
##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, it shows 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.
##34971539##	This code is used to get information about phone camera. It shows following 4 menus:
	Update camera firmware in image (Don't try this option)
	Update camera firmware in SD card
	Get camera firmware version
	Get firmware update count
	WARNING: Never use the first option otherwise your phone camera will stop working and you'll need to take your phone to service center to reinstall camera firmware.
Codes to get Firmware version information:
##49862650468##*	PDA, Phone, H/W, RFCallDate
##44336##	PDA, Phone, CSC, Build Time, Changelist number
##1234##	PDA and Phone
##1111##	FTA SW Version
##2222##	FTA HW Version
Codes to launch various Factory Tests
##0842##	Device test (Vibration test and BackLight test)
##0##*	LCD test
##2664##	Touch screen test
##3264##	RAM version
##0588##	Proximity sensor test
##2663##	Touch screen version
##0673## OR ##0289##	Melody test
##0283##	Packet Loopback