LG 50PM470T User Manual page 76

To return to initial settings
❐
HOME ➾ Settings
Deletes all optional settings and returns to initial default mode.
Once initialization is complete, the TV will turn off and on by itself.
✎ If Lock System
✎ Do not turn off the power during initialization.
➙ OPTION ➙
is activated, a pop-up password prompt will appear.
Factory Reset