Method One, enter the phone set restore
1, open the mobile phone "function table-Settings-security privacy-Restore factory settings" as shown in the following figure.
Method two, Recovery mode
1, close the Android phone, and then boot, as long as the mobile phone at the same time to press the home key and hang the key can enter recovery mode, and then in recovery mode Select Wipe date can begin to restore factory settings
Method III, with the help of computer-aided software (Brush Machine Wizard)
1, download and install the Brush Machine Wizard in the computer, use the data line to connect the computer with the mobile phone, after opening the Brush Machine Wizard to let the Brush Machine Wizard automatically identify and connect the phone can, if not recognized, please check whether the Android phone turned on the USB debugging mode, not clear friends please read: Brush Machine Wizard to identify the connection on the Android phone, Click on the "utility" at the top to find the Android phone to restore the factory settings
Note: before the phone to restore the factory settings, it is recommended to back up some of the necessary information, such as pictures, contacts, and also can back up the installed software and games and so important information, backup data you can use Pea pod or 91 Mobile phone helper (Android version) can be.