Hard Reset LG U8120C

Make sure that device is working then open phone's Dialer.
Type in this code using keypad: 1809#*101# or 2945#*101# or 277634#*#
Left Softkey to confirm whole process of Master reset.
Let your device to restart, it should take around 30 seconds.
Success! your phone is now after operation and ready to use.

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.