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. So, your ...
If your iPhone is frozen, unresponsive, stuck on the Apple logo, or refusing to restart normally, a hard reset is often the quickest fix. Unlike a factory reset, a hard reset does not erase your data.
Being able to restart an iPhone on your own terms is rather useful and sometimes necessary, but not having access to your power button for whatever reason can feel like having one of your arms tied ...