In order to hard reset a LG KG800, you should perform the following steps.

Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
LG KG800 device will be brought back to the default configuration of a brand new device.

1. For starters, turn on the device.

2. Press the Call button in order to open the dialer.
3. Enter this sequence into the dialer: 2945#*101# or 1809#*101# or 2945#*7101#


4. To complete the hard reset process, press the Call button. Wait for your device to reset and restart.