LG C800 hard reset
If you can’t recall your C800 unlock Pattern:When the phone is turned off, press and hold the Power/Lock + Volume Down + Qwerty F + Qwerty A Keys at the same time (for over ten seconds).
The phone will turn on and perform a factory reset immediately.
WARNING: If you perform a Hard Reset, all user applications, user data and DRM licenses will be deleted. Please remember to back up any important data before performing a Hard Reset.
if you forgot the LG C800 Unlock Pattern
How to perform a factory reset:
1. Turn the power off.
2. Press and hold the following keys at the same time for 15 seconds: Power/Lock Key + Volume Down Key.
3. When the LG logo is displayed, release the keys.
When you perform a factory reset, all user applications and user data will be deleted. Please remember to back up any important data before performing a factory reset.
You can use LG mobile support tool and choose recovery mode.