A Hard Reset reverts a phone to its original settings and a clean OS (Operating System) removing all data and information added to the cell phone by the mobile phone user.
In essence a Hard Reset erases everything from the phone and puts the phone back to like new condition as though it’s brand new right out of the box.
1. Hard reset proces begins from turning off you device by holding down power button.
2. Then press and hold Volume Down + Home button + Power button.
3. Now wait untill LG logo appears and you can release the buttons.
4. Now your phone will reboot and the hard reset is over.