How to Turn off iPhone 8 and Older
No matter your reason for doing it, below are the steps for shutting off an iPhone. This technique applies to most iPhone models, from the original to the latest version.
How to Turn Off iPhone X and Later
Turning off the iPhone X is a little trickier. That’s because the Side button (formerly known as the Sleep/Wake button) was re-assigned to activate Siri, Apple Pay, and the Emergency SOS feature. Here are the steps to turn off an iPhone X.
How to Hard Reset an iPhone 8 and Older
When your iPhone is locked up because of some glitch or error, the normal shutdown process may not work. In that case, try a technique called a hard reset. This should only be used when other attempts have failed, but sometimes it’s just what you need.
How to Hard Reset an iPhone X and Later
Without a Home button, the hard-reset process on the iPhone X is different:
