If you can still access the standard user interface, this is the safest method:
Press the Mute button 3 times quickly on the Magic Remote to show serial numbers and basic reset options. Standard Factory Reset (No Code Required) 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
The TV will reboot and return to its original out-of-the-box state, often resetting usage hours to zero. Alternative Service Menu Access Codes If 0413 does not work, try these common variations: Standard Passcodes: 0000 , 7777 , 8741 , 8878 , or 8743 . Lg Tv Service Menu Code To Factory Reset
0413 is the most common passcode for nearly all LG models.