Restarting your iPhone is usually straightforward, but it gets a bit trickier if you don't have a working power button.

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.

To factory reset Beats Solo 3, hold the power and volume down buttons together for 10 seconds until the LED flashes, then ...