Try disconnecting all components from the motherboard including the Battery for about 20-30 minutes. This should remove all energy and reset all values.
Removing battery and disconnecting power didn't have any effect. Left the board in that state for 36 hours, but afterwards it still came up with no video.
At this point, if you have tried all the steps mentioned by other users and issue persists, I would say there is an internal problem with the unit and may be necessary to replace it.
You can contact your local support or our chat support for further assistance: