Hardware Buttons Failure

[Reign01]

My 4 Hardware Buttons (Home, Back, pick up call, hang up) have ceased working. Also possible unrelated when I go to my contacts folder it is empty, but the contacts are still there because when I go to phone and starting keying in the first few letters of a name the list appears, but while in contacts, none are listed. Also, it doesn't say that message to like "click New to add new contact". Another possible unrelated error is that Touchflo 3d doesn't load, it just shows the HTC symbol with the contacts and phone (or calendar) at the bottom and the status symbols at the top. Any suggestions will be greatly appreciated. I've done dozens of soft resets and 2 hard resets since friday and the hard resets temporarily solved the unviewable contacts problem, but not the hardware buttons problem.

I fear my phone is near its end.