Quicktip: Force Restart iPhone 7
The Apple iPhone 7’s has done away with the mechanical home button, for the new solid-state haptic experience. As a result, there’s a new way to force restart the device.
Apple notes that you should only force restart your device as a last resort and “only if (the handset is) not responding.”
Until now, doing a force restart on your iPhone required you to hold down the Home and Sleep/Wake buttons simultaneously for five seconds. This will no longer work on the iPhone 7’s. You will now have to hold down the Sleep/Wake and Volume Down buttons until you see the Apple logo.