TCL L40B2800 Factory Reset Instructions =

Factory Menu

Using the remote control, enter "image", select the contrast option and press the sequence 9-> 7-> 3-> 5.

Design Menu

Using the remote control, enter "image", select the contrast option and press the sequence 1-> 9-> 5-> 0.

Service Menu

Using the remote control, enter "image", select the contrast option and press the sequence 9-> 7-> 0-> 5.