Hi Today I had an unfortunate accident. My pet pulled a usb cable while the unit was charging and it fell. It has a tiny bit hit on the front at the top left corner. The unit seems to work fine but the screen doesnt function. I have loosened the front screws to take out the board but I cannot access the front part of the board behind the the front plate to check if a connector is loosely. Is there something else I can do to troubleshoot the connection of the screen?