In order to hard reset a LG GM200 Brio, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
LG GM200 Brio device will be brought back to the default configuration of a brand new device.
1. Turn on the phone by holding down the Power button.
2. Press the Call button in order to open the dialer.
3. Enter one of these codes into the phone - 2945#*101# or 1809#*101#
4. Lastly, press the Call button again. Your phone will now reset and restart. Well done.