Hard reset or format LG Optimus F6 D505 to reset mobile its factory default settings. Some time we set screen pattern lock before adding Google account. Google account is use full if we forgot pattern lock and want to reset pattern lock without losing mobile data and all installed apps. We can reset pattern lock with google account without formatting mobile phone. If we have not add google account then hard reset or formatting mobile is easy method. But in this method all installed apps and mobile numbers, messages are deleted. So take backup before hard reset LG Optimus F6 D505 to its default settings.
How To Unlock Pattern Lock On LG Optimus F6 D505Turn off mobile.
Press and hold Volume Down and Power keys together.
Reset menu will appear press power to reset.
Press power key again to confirm.