While you probably don’t need to power cycle your iPhone 11 series phone very often, this article will explain how to do it. It will also cover how to restart and force restart all iPhone 11 models.
How to Turn Off iPhone 11 Pro Max, 11 Pro, 11
The instructions in this article apply to all iPhone 11 series phones (iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max) running iOS 13 and later.
Most of the time, you don’t need to turn off your iPhone 11. You can simply put it to sleep. If you really want to save battery, you can turn off your iPhone 11 (though you should also try Low Power Mode). No matter which iPhone 11 model you have, here’s how to turn it off:
Press and hold one of the volume buttons.