How to Turn an iPhone On and Off

During normal use, the iPhone does not turn off. When you press the "Sleep/Wake" button or leave your phone alone for a few minutes, the screen shuts off, but the system itself remains active, keeping your apps running, your music playing and your alarms set. To actually turn an iPhone off and back on, you need to hold down "Sleep/Wake" rather than pressing it quickly.

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Tap "Cancel" to exit the shutdown screen without powering off.
credit: Image courtesy of Apple

Step

Press and hold the "Sleep/Wake" button on the iPhone for three seconds to display the power off slider. Swipe the slider from left to right to shut down.

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Swipe to shut down.
credit: Image courtesy of Apple
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Turn the phone on.
credit: Image courtesy of Apple

Step

Wait until the backlight on your phone turns off -- you might see a lit black screen for several seconds beforehand -- and then press and hold "Sleep/Wake" again until the Apple logo appears.

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Unlock the phone.
credit: Image courtesy of Apple

Step

Swipe from left to right to unlock your iPhone.

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Enter your passcode.
credit: Image courtesy of Apple

Step

Type in your pass code, if you have one, to reach the home screen. If you have an iPhone 5s or newer and set up Touch ID, you can alternatively place your thumb on the "Home" button to unlock via fingerprint. Even if you set your pass code to activate after several hours of disuse, you need to enter it the first time you unlock the phone after rebooting.