The method of resetting the new iPhones have completely changed now. You could perform a hard reset on the previous version of the iPhone just by pressing the sleep/wake button, but that’s not the case for the iPhone 8 and iPhone 8 Plus.
How To Hard Reset iPhone 8 And iPhone 8 Plus
You’ll need three buttons to do this, the Volume up button, Volume down and the side button. It is all quite simple. Just follow the steps below:
Step 1: First hold and then promptly release the Volume up button.
Step 2: Repeat this for the Volume down button. In other words, press and then release the Volume down button quickly.
Step 3: Next, press the side button and hold it for few seconds. Once you notice the Apple logo on the screen, release the side button. It will start the hard reset process. It will take few seconds. The iPhone 8 will boot after and you will see the lock screen. When you see the lock screen, the hard reset is completed.