Нашёл 4 млн ответов for 'Restart iphone'.
https://support.apple.com/en-gb/HT201559
https://www.lifewire.com/how-to-reset-iphone-2000288
https://www.businessinsider.com/how-to-restart-iphone-7-8-x-xs-xr?r=US&IR=T
https://www.imore.com/how-reboot-reset-or-enter-dfu-mode
https://setapp.com/how-to/reset-iphone
https://www.digitaltrends.com/mobile/how-to-reset-iphone/
https://www.macworld.co.uk/how-to/restart-iphone-ipad-3662903/
https://drfone.wondershare.com/reset-iphone/how-to-start-force-restart-iphone.html
https://drfone.wondershare.com/reset-iphone/how-to-restart-iphone.html
https://drfone.wondershare.com/reset-iphone/restart-iphone-without-buttons.html