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
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) If you can still access the standard user
Press and hold Settings for 7 seconds, then enter 1105 . Standard Factory Reset (No Code Required) Press and
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 .