NEWSRestarting your iPhone can be beneficial for both - Solving minor errors and improving your phone's performance.
METHOD 1Press and hold the power button until the power off slider is revealed on the screen. Drag the slider from left to right to turn off the iPhone.
CONTINUEWait for at least 30 seconds to give time for your iPhone to shut off completely. Press the power button again until the Apple logo appears.
METHOD 2If your iPhone is unresponsive or frozen, then you can use the force restart option to bring it back to normal.
CONTINUEPress and hold the power button and the low volume button at the same time when the phone is on for around 15 seconds.
CONTINUERelease the buttons as soon as you see the Apple logo on the screen. Your iPhone has successfully force restarted and should work normally.