How to put the iPhone 7 / 8 DFU and Recovery Mode


Plug your iPhone into your PC now Press and hold the Sleep/Wake and Volume Down buttons at the same time for exactly 10 seconds. Release just the Sleep/Wake button and continue pressing the Volume Down button until iTunes pops up with a message telling you that it's detected an iPhone in recovery mode. The iPhone's screen will remain black.

Recovery Mode

Press and hold Sleep/Wake and the Volume down button while plugged into your PC and keep them held down until you see this picture with the cable pointing toward the iPhone Logo