When you do, a small box will pop-up on the center of your iPhone’s display indicating the volume of your iPhone. Press the volume up button on the left side of your iPhone to turn up its volume. If you plugged headphones into your iPhone, but you can’t hear any audio playing, then the volume on your iPhone may just be turned all the way down. Release the power button when the Apple logo appears right in the center of your iPhone’s display. Wait approximately 15-30 seconds, then press and hold the power button again. Swipe the power icon from left to right to turn off your iPhone.
After a few seconds, you’ll see “slide to power off” and a small power icon appear on the screen. To turn off your iPhone, press and hold the power button.
