LG G2

1st method

  • Go to Settings -> Backup and Reset -> Factory Data Reset -> Reset Device -> Delete all
  • Wait until phone reboots

2nd method

  • Power off the phone
  • Press and hold Power on (Blue) + Volume Down (Red) on the back of the phone
  • Release the Power on (Blue) when the LG logo is desplayed, then immediately press and hold the Power on (Blue) again.
  • Release all keys when the hard reset screen is displayed
  • Press the Power on (Blue) to continue or either of the Volume keys (Red or Yellow) to cancel
  • Press again  the Power on (Blue) to continue or either of the Volume keys (Red or Yellow) to cancel
LG G2 Hard Reset
LG G2 Hard Reset

Let us know if worked by leaving a comment :)