My phone had a bad ear speaker, so I took it apart, decided i would just deal with having to use speaker phone. I went put it back together and now nothing works on the screen, backlight, or lcd. I believe it is on because when I connect it to a computer it recognizes it, but I didn't do anything with the screen. I took off the connector shield and made sure they didn't somehow come unplugged. Is there anything simple that I may have missed?