If you can still access the standard user interface, this is the safest method:
Press In Start (if using a service remote) or hold Menu/Settings on both the remote and TV simultaneously until a password prompt appears. Step 2: Enter 0413 . Lg Tv Service Menu Code To Factory Reset
Select P-Only or navigate to line 112/117 (depending on the model) to trigger a factory reset. If you can still access the standard user
Press and hold Settings for 7 seconds, then enter 1105 . Press and hold Settings for 7 seconds, then enter 1105
To factory reset an LG TV, you can use the standard menu or advanced "Service Menu" codes. The service menu is primarily for technicians and should be used with caution, as incorrect changes can permanently damage the TV. Direct Service Menu Reset
0413 is the most common passcode for nearly all LG models.