Press and on the TV panel (not the remote).

To update or recover the software on this board, you typically use one of two methods:

: If your screen shows a "No Signal" or distorted image after a software flash, you may need to use specific remote control codes to match the panel's resolution. Logo Capture

It is one of the best values in the mid-range networking market right now, specifically because the software "just works" out of the box.