The screen connector's covering (the small wire going around the perimeter of the screen on left side) is missing a piece. The wire itself does not looked frayed or damaged in any way, but the screen is not working and I suspect this is the cause. The display works when connected to an exterior monitor (via hdmi), so it is not a hardware problem, just the screen not working. The screen itself is just black, and does not light up whatsoever on startup or otherwise.