LG Enlighten VS700 hard reset
1. Turn the power off.
2. Press and hold the following keys at the same time for less than 8 seconds: Power/Lock Key + the Volume down Key + Home Key.
NOTE In the case of a malfunction or lock up error, press and hold the Power/Lock Key for 8 seconds to reset.
Caution: If you perform a factory reset, all user applications and user data will be deleted. Please remember to back up any important data before performing a factory reset.

To reset your LG Enlighten VS700 phone to factory settings and erase all the data on your phone, touch Menu > Settings> Privacy > Factory data reset > Reset phone.
You can use LG Mobile Support tool to repair your LG cell phone, after download select menu Customer Support > Recovery Phone