Performing factory data reset ( master reset or hard reset ) LG Optimus G LS970 via Settings menu:
Performing factory data reset
- Press Home key
- press Menu key
- tap Systems settings
- tap Backup & reset
- tap Factory data reset
- tap Reset phone
- tap Erase Everything
Warning! All data will be erased from device memory, including system and application data, settings and downloaded applications. Back up your important data. The device will restore to factory settings.
If your phone hangs or does not responding, Press and hold power key about 10 seconds. It will rebooting automatically. Or remove and re insert the battery and SIM Card.
Resetting the phone does not erase any system software updates you have downloaded or any files you have saved, such as music, pictures, or applications. After resetting the phone, the next time you turn on the phone, you are prompted to reenter the same kind of information as when you first started the phone.