Quick Answer: To restart your iPhone without the power button, go to Settings > General > Shut Down, then slide to power off. You can also ask Siri to restart your iPhone without the button.

Pressing the volume up button together with the side button takes a screenshot. But if you press and hold this combination, the power menu will appear, from where you can turn off your iPhone.

Drag the slider and wait 30 seconds for your device to turn off, according to Apple Support. Then, press and hold the side button, located on the right side of your iPhone, to turn your device ...