LG Optimus Hub hard reset LG E510 hard reset
Turn off your LG Hub. Press and hold both Volume down + HOME + POWER buttons together to get into android recovery menu. Select wipe data / factory reset with Volume button. All data will be lost!
LG E510 reset via menu
To reset your LG Optimus Hub 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
Pls test hard reset using buttons and share your experience in comment.