Have you tried doing a hardware master reset with the phone to see if some corrupted application was causing the problem?
Hey simplicityair1. I'm sorry to read about your phone's failure to start up! It sounds like you might be experiencing something called a boot loop - where you power the phone up and it just goes through the boot screens (start screens) but never gets past them to your home screen. Does that sound like what's happening? Were you able to give theartiszan's suggestion a shot?