In order to hard reset a LG KG920, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
LG KG920 device will be brought back to the default configuration of a brand new device.
1. Lets begin. Please press the Power button in order to turn your phone on.
2. You will find yourself on the Home screen. From there, go to Settings and select General.
3. Next, select Backup and Reset, Factory data reset and Reset phone.
4. Now select Erase Everything and, lastly, OK. Your phone will now reset and restart. Good job.