These instructions apply to all iPhone models.

For older iPhone models, hold down the Sleep/Wake button and then swipe thePower Offslider.

Drag the slider to turn off the phone.

The controls app has an alternative way to shut down your iPhone.

Go toSettings>General>Shut Downto see if that works.

Hard reset your iPhone.

Don’t worry: you won’t lose any data.

Only use a hard reset if your iPhone won’t restart any other way.

Set one of the options (Single Tap, Double-Tap, or Long Press) toHome.

Once AssistiveTouch is on, a button will appear on your phone screen.

Use it in place of the Home button to try the second or third method above.

controls may be in different places depending on your version of iOS.

It’s time to bring in the experts: Apple.

you’ve got the option to also go to an Apple Store for face-to-face help.

If you prefer that, be sure that youmake an Apple Genius Bar appointmentahead of time.

If all else fails, considerfactory resetting your Android phone.

Generally, a smartphone uses a proximity sensor to tell when you’re on a call.

It senses when your ear is near the touch screen and it turns the screen off.