In order to hard reset a LG G360, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
LG G360 device will be brought back to the default configuration of a brand new device.
1. Power up the phone.
2. Enter Main menu and choose Reset Settings > Master Reset. Press the Left Softkey button to confirm the operation.
3. You will be asked to enter the phone's Security code. Default code is 0000.
4. Your phone will now reset and restart. Voila.