Using DFU (Device Firmware Update) mode restore on iPhone 11 [Tutorial]

DFU mode restore is deemed to be the last option in restoring a faulty iPhone back to factory settings. iOS devices are indeed among the existing stable smartphones, but it is still important to know about how DFU mode works and how it is carried out. Because no matter how stable iOS devices can be, these phones are still vulnerable to system glitches and iOS bugs. Thus, knowing about the DFU restoration process is a must.

How does DFU Mode restore works

DFU Mode restore will wipe everything from your phone’s internal memory, giving your phone a clean iOS install. To secure any important data, you need to back up your phone with either iCloud or iTunes. But in case you change your mind and decided not to continue the process, you can still exit from the DFU mode before everything has been wiped out. Hence, if the DFU mode restore has been completed, all major software glitches and iOS bugs will surely be cleared out. Thus, restoring your phone’s iOS to its workable state.

Requisites for DFU Mode restore

In order for you to execute the DFU (Device Firmware Update) mode restore on your iOS device, you would need to have a computer either Mac or Windows. Then installed the latest iTunes software on the computer. You will also be needing the Apple supplied USB cable or Lightning cable to connect your iPhone 11 to the computer. Once these requisites are met, then you can proceed to carry out DFU Mode restore on your iOS device.

Steps to enter DFU Mode restore

  1. Using the USB or the Lightning cable, connect your iPhone 11 to the computer.
  2. If the iTunes software doesn’t automatically launched on your computer, open the app manually.
  3. With your iPhone 11 still connected to the computer, performing the following steps to boot your device in DFU Mode. Press and quickly release the Volume Up button.
  4. Press and quickly release the Volume Down button.
  5. Then, press and hold the Side or Power button until the screen turns black.
  6. Continue holding down the Side/Power button and then press and hold the Volume Down button for at least 5 seconds.
  7. After the elapsed time, release the Power button but don’t let go of the Volume Down button.
  8. Release the Volume Down button once iTunes recognizes your iPhone 11 device.

Check the screen of your iPhone 11. If the screen remains black, this means that your phone has successfully entered DFU Mode. However, if your phone shows “Connect to iTunes” message instead of a black screen, you need to start over as this means that you’ve entered recovery mode instead of DFU mode.

How to exit from DFU Mode

If you have accidentally entered the DFU Mode or you just don’t want to finish the process at all, you can exit your phone from this state by simply giving it a force restart. To do so, follow these steps:

  1. Press and then quickly release the Volume Up button.
  2. Press and then quickly release the Volume Down button.
  3. Then press and hold the Side or Power button until the Apple logo appears.

Once your phone has successfully passed through the boot-up sequence, you will then be asked to enter your device passcode or use Face ID to unlock your iPhone 11.

Completing DFU Mode restore on iPhone 11

Now, if you wish to continue the DFU Mode restore on your device, you just need to follow the onscreen prompts in iTunes to restore your phone to its factory default settings and giving it a clean iOS installation. Your phone will automatically exit from DFU mode once the process has been completed, and routes your phone back to the initial activation screen.

If you wish to know more about system reset, repair and restore guides for your iPhone 11, please click this link: iPhone 11 basic: system reset and restore guides.