How to reboot, reset, turn on DFU mode on iPhone 8 and iPhone X

Reset iPhone (device reboot) and DFU mode are the last two steps to troubleshoot complex problems on iPhone 8 and iPhone X. When all troubleshooting attempts are not working, here are the steps You have to make the phone work properly.

Reset is forcibly restarted phone, you can perform this action even if the phone is broken. In contrast, DFU mode (device recovery mode), which is the way to put iPhone into a state that can communicate with iTunes on Windows or Mac and is restored. However, with DFU mode, the iPhone will not start the iOS operating system or bootloader in case the software is obstructed.

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How to restart iPhone X, iPhone 8

If iPhone 7 and 7 Plus, Sleep / Wake key combination and volume key used to reboot the phone, on iPhone 8 / 8X, this operation will be used to open the Emergency SOS feature (this operation is simple and easy to remember for emergencies) So you can't restart an iPhone 8, 8X above. To restart an iPhone 8 / 8X in case it stops responding and can't exit the app or can't shutdown, you'll do the following:

1. Press and quickly release the Volume Up key
2. Press and quickly release the Volume Down key
3. Press and hold the Side button (power button) until the Apple logo appears

How to bring iPhone X, iPhone 8 to DFU mode

If all attempts to fix the problem fail, you need to restore the iPhone. If you cannot restore iPhone in the normal way, you can return it to DFU mode.

1. Connect iPhone to Mac or Windows computer.
2. Make sure iTunes is running.
3. Turn off iPhone (if it is not turned off)
4. Press and hold the power button next to iPhone for about 3 seconds.
5. Keep the power button still and keep adding the volume down button of the iPhone.
6. Continue to hold these 2 buttons for about 10 seconds. (If the machine restarts the Apple icon, please repeat the first step.)
7. Now release the power button and just hold each iPhone volume down button for 5 seconds. (If you see the 'Plugin into iPhones' message, you have kept the power button or the sound down button for too long, you need to start again.)
8. If you see that the iPhone screen is still black, so you have succeeded, your iPhone is in DFU mode.

At this point, iTunes will notify you that your iPhone 8 or iPhone X requires permission to be restored.

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