10

I understand that when I press and release the power button on the top of my iPhone or iPad, it stays on but turns off the screen.

Whereas if I press and hold the power button, a "slide to turn off" control appears on the screen.

Sliding this, as I was told, does turn the unit off, but it does so by suspending the RAM to disk (flash memory, actually.) So, when turning on the iPhone or iPad, it isn't so much rebooting the OS as it is resuming it from flash storage.

How to force the OS to completely reboot on these devices?

20

See Restart your iPhone, iPad, or iPod touch - Apple Support:

iPhone 8 or earlier

Press and hold the Home and Power Button until your iPhone / iPad reboot (ignore the "Slide to turn off"), you can release both buttons when you see Apple logo.

iPhone X

Press and hold Volume up [or down] and Power Button until your iPhone reboots (ignore the "Slide to turn off"), you can release both buttons when you see Apple logo.

See If your iPhone, iPad, or iPod touch won‘t turn on or is frozen - Apple Support:

If your screen is black or frozen

If your screen is black or frozen, you might need to force restart your device. A force restart won't erase the content on your device. You can force restart your device even if the screen is black or the buttons aren't responding. Follow these steps:

  • On an iPhone X, iPhone 8, or iPhone 8 Plus: Press and quickly release the Volume Up button. Press and quickly release the Volume Down button. Then, press and hold the Side button until you see the Apple logo.

  • On an iPhone 7 or iPhone 7 Plus: Press and hold both the Side and Volume Down buttons for at least 10 seconds, until you see the Apple logo.

  • On an iPhone 6s and earlier, iPad, or iPod touch: Press and hold both the Home and the Top (or Side) buttons for at least 10 seconds, until you see the Apple logo.

  • 2
    If this fails, start iTunes, connect the power cable, hold the power and home button for 10 seconds. Release the power button, but CONTINUE to hold the home button and you will be able to restore. – Michael Pryor Aug 18 '10 at 21:38
  • 1
    It doesn't seem he wanted to restore his iDevice. – Studer Aug 18 '10 at 22:45
2

Hard power off, hold power button and home button until it shows the shutdown slider, and then keep holding the buttons. After a while the screen will completely turn black. Now press the power button to boot the machine up.

-2

To cold boot your iPhone or iPad, hold down the power button and the home button together until your iPhone or iPad turns off (Ignore the swipe to turn off if it appears.)

-2

The correct answer is to: - Hold the 'Volume Down' button and 'Power' button at the same time

We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .