This may happen that you press and hold the on/off (sleep/wake) button on your iPhone – and nothing happens (like completely dead). If your iPhone won’t turn on, there are a lot of things you can try to fix your iPhone. After each step please check if the issue still exists. If so, proceed to the next step:
- Install the latest version of iOS
- Connect the iPhone to a power adapter and let it charge for at least ten minutes. Then try again.
- Connect your iPhone to a power outlet, then press and hold the on/off button and the Home button together, until the Apple logo appears.
- Connect your iPhone to a computer and open iTunes and try to restore your iPhone.