How do I restart a Iphone 6?

To restart an iPhone with home button (Touch ID Button) Press the Home Button ( Touch ID button) and power button at the same time for a few seconds. Or to power off press power button for few seconds then slide the slider. To power it back on Just press power button for a few seconds

More info - Restart your iPhone - Apple Support

Hi there!

Learn how to turn your iPhone off, then back on: Restart your iPhone - Apple Support.

Jack

leann226 Said:

"How do I restart a Iphone 6?"

Please Provide More:

Why do you need to restart it? If you are having issues, please report them for distance with troubleshooting.

You can hold down the power button and the home button, to restart the phone.

When was the last time that you replaced the battery on your phone?