SECRET CODES FOR ANDROID

1. Complete Information about your Phone:
*#*#4636#*#*
This code can be used to get some interesting information about your phone and battery. It shows following 4 menus on screen:

Phone information
Battery information
Battery history
Usage statistics

2. Factory data reset
*#*#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.