Here's How The steps for what to do on an iPhone 7 are a little different ... by holding down one of the volume buttons and ...

2. When a slider labeled slide to power off appears at the top of the screen, drag it to the right. 3. Wait a few moments for the iPhone to completely turn off and for the screen to go black.

Learn exactly what Low Power Mode disables, how to turn it on and off, and how to keep it on permanently if you'd like to see how it affects your iPhone's battery. For more, read about how to ...

On an iPhone 7 or 7 Plus, press and hold the volume down and power/lock buttons until you see ... And if that doesn't fix the issue, it's off to the Apple Store for a Genius Bar session.