Recently a buddy of mine from work put ios 7 beta 2 on my iPhone, which was cool i used it for two weeks updated to beta 3 it was working fine.Then four days ago my phone wont charge i haven't dropped it or anything like that. So far i have hooked it up in both recovery and DFU mode into iTunes and nothing is happening. Also i have replaced the charge port and tried two different computers. So any good ideas?