Hi, I have met the same problem as you. I get this problem solved with Joyoshare UltFix that is what my friend recommends to me. In fact, I don’t want to sue the additional software to fix. However, I really can’t resolve the issue by myself. So I have to use it. What surprises me is that it can repair my iPhone issue without losing data. After using, I must admit that some technical problems have to be repaired with professional software. Hope it can also help you.