. Factory Reset
Follow the below procedures to do factory reset.
1. Press the remote control buttons in the order of MENU  3  4  8  1 to open the Factory Mode menu.
2. Press / to highlight Factory Reset, then press / to select ON.

3. Press ENTER to start factory reset.
4. After the reset is completed, “Reset End, AC OFF/ON” message is displayed.
5. Turn the TV off and on again, then follow the on-screen instructions to complete the initial setup.