I got these tips from the manual. I figured how to restart iPhone before I read the manual. But, I don’t think I’d figure out how to reset it by myself.
- Restart iPhone: Press and hold the Sleep/Wake button until the red slider appears.Slide your finger across the slider to turn off iPhone. To turn iPhone back on, press and hold the Sleep/Wake until the Apple logo appears.
- Reset iPhone: Press and hold the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears.
These tips are handy when your iPhone is not behaving.