So my phone fell out of my locker at the gym last night, and when I picked it up the top left corner was green and the touch functions were not working. Over the next 24hrs the screen got progressively darker, and now you cannot see whats on the screen unless you are in a very dark room. I was wondering if this is an issue where I would need to replace the LCD screen, or maybe a loose cable inside from the fall? Any help would be greatly appreciated.