My iPhone 4 (iOS 5.1) was stuck on reboot. Even tried to turn off to DFU mode.
Before it happened, my iPhone 4 had a problem with a music app, couldn’t play the song in app. I think that was a small problem.
Until now my iPhone 4 was stuck in reboot. Nothing I can do to fix it. Don’t know how to make it work again. Waiting until the battery drains and it turns off itself. How to solve this and make my iPhone 4 work as usual?