オリジナル投稿者： Matt Logan ,
All else has failed and you're feeling screwed, watch this video: https://www.youtube.com/watch?v=chZSdY5HkV0 TLDR: Treat the phone just like a PC: 1. Open iPhone 2. Disconnect everything - A. Unscrew square-ish metal piece at the top right to get at the connections to the screen, back camera and volume buttons - B. Unscrew the long rectangle-ish metal piece next to the bottom right corner of the battery to get to the battery connection and lightning connector 3. Connect the battery and screen and see if it works 4. Connect the lightning connector to plug into iTunes 5. Plug in other connectors one at a time to see if they are causing the issue.