please help with headrest monitor hd121hd

XTRONS Headrest & Car Roof DVD Players
neo0606
Posts: 3
Joined: Sun Sep 02, 2018 6:19 am

please help with headrest monitor hd121hd

Postby neo0606 » Tue Sep 04, 2018 3:27 pm

hi all, as you can see from the picture the HDMI and USB is gone from the input source list when i press the middle button on the unit and the source selection from the remote. i accidentally went in to a hidden system/config menu a few days ago while using the remote. i think from that hidden menu i accidentally deactivated those two sources. can anyone please tell me how to go to that hidden menu? or can someone please tell me how to put back those two sources to that list? thanks.
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