*#*#4636#*#*. It will show the following menu on the screen. Phone information Battery information. Battery history. Usage statistics. This code is used for the factory reset@0£yt it will removeremove the following. (1)All the google account setting store on your phone (2)System and application data and setting (3)Downloaded application in your phonememory IT WILL NOT REMOVE the current system software and bundle application SD card files e.g photos,music file's NOTE. Once you give this code,you get a prompt screen asking you to click on"RESET PHONE" button so you get a chance to cancel your operation