How To Power Off Iphone 7 Plus When Frozen Came Out. Otherwise, your iphone could get stuck in the recovery mode too. Force restart frozen iphone 7/7 plus.
from venturebeat.com
Go to [device] and hold on [lock screen] until power off slier appears. Press and hold the sleep/wake button. Press and hold both the top (or side) button and the volume down buttons until you see the apple logo.
Keep holding the buttons until you see the recovery mode screen. Then press and hold the side button until you see the apple logo. Press and hold the power and volume down button simultaneously. When iphone 7 freezes, the restart will cut the power supply and reconnect it giving a boost to the system.

Source: venturebeat.com
Keep holding the buttons until you see the recovery mode screen. Release the volume down button when your iphone appears in itunes or finder. Press and quickly release the volume up button. Please click the assistive touch and then follow [device], […] and [restart] to restart the iphone 7 (plus). Free up some space on your iphone

Source: www.tenorshare.com
Press and quickly release the volume down button. Go to [device] and hold on [lock screen] until power off slier appears. The first method you should try is to force restart your iphone 7/7 plus. Free up some space on your iphone When iphone 7 freezes, the restart will cut the power supply and reconnect it giving a boost to the system.

Source: venturebeat.com
The first method you should try is to force restart your iphone 7/7 plus. You'll know your iphone is in dfu mode if the display is completely black. Back to the main screen and click the assistivetouch button. Press and quickly release the volume up button. Iphone 7, iphone 7 plus, and ipod touch (7th generation):