Restarting and Resetting iPhone

If something isn’t working right, restarting, force quitting an application, or resetting iPhone will likely solve the problem.

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.

If you can’t turn off iPhone or if the problem continues, you may need to reset. A reset should be done only if turning iPhone off and on doesn’t resolve the problem.

Force quit an application: 

Press and hold the Sleep/Wake button on top of iPhone for a few seconds until a red slider appears, and then press and hold the Home button until the application quits.

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.