What Is DFU Mode and How to Put an iPhone in DFU Mode

iPhone may have unexpected problems during use, such as Apple being stuck on the Apple logo with the progress bar, white screen, black Apple logo, iOS problems, etc. Most of the time, putting your iPhone into Recovery mode and restoring it will solve your problem. But what if Recovery mode doesn't solve your problem?

DFU mode is of great help. So what exactly is DFU mode and how to get an iPhone into and out of DFU mode?

You have come to the right place. Here you will find all the answers.

What Is DFU Mode?

DFU is an acronym for Development Firmware Upgrade. DFU mode is another mode on iOS that allows you to force upgrade and downgrade iOS firmware. It is also known as developer mode for iOS. As the name suggests, DFU mode is more suitable for developers. If you are new to iOS, use this mode with caution.

DFU Mode vs Recovery Mode

The biggest difference between DFU mode and Recovery mode is whether iBoot (bootloader) is loaded, which is a remote power controller that allows you to control, reboot, and cycle power to any connected device from a distance. In Recovery mode, Finder or iTunes will load iBoot to restore and upgrade your firmware, while in DFU mode, Finder or iTunes will bypass iBoot, so you can use this mode to jailbreak and downgrade your iOS.

When To Put Your iPhone in DFU Mode

DFU is not commonly used as the Recovery mode, because most of the problems of iOS can be solved in Recovery mode. Here are some situations when you should put your iPhone in DFU mode:

• To fix issues that can not be fixed in Recovery mode.
• To downgrade your iOS.
• To jailbreak or unjailbreak your iPhone.

How to Put Your iPhone Into DFU Mode

Now that you know when you should put your iPhone in DFU mode, let's see how.

How to Put iPhone 8 and Later Into DFU Mode

1. Connect your iPhone to iTunes or Finder.
2. Press and quickly release the Volume Up button.
3. Press and quickly release the Volume Down button.
4. Press and hold the Side button until your screen goes black, then press and hold the Side button and the Volume Down button at the same time.
5. After 5 seconds, release the Side button while holding down the Volume Down button until you see a popup in Finder or iTunes saying your iPhone is in DFU mode.

How to Put iPhone 7 and 7 Plus Into DFU Mode

1. Connect your iPhone with iTunes or Finder via a USB cable.
2. Press the Side button and the Volume Down button at the same time.
3. After about 8 seconds, release the Side button while holding down the Volume Down button until you see a popup in Finder or iTunes saying your iPhone is in DFU mode.

How to Put iPhone SE, iPhone 6s, and Earlier Into DFU Mode

1. Connect your iPhone with iTunes or Finder via a USB cable.
2. Press and hold the Home button and the Side button at the same time.
3. When the screen goes black, release the Side button while holding down the Home button until Finder or iTunes shows that your iPhone is in DFU mode.

How to Get iPhone Out of DFU Mode

We already know how to put an iPhone into DFU mode. So what should you do if you want to get your iPhone out of DFU mode?

Normally, we don't need to do it manually because your iPhone will exit DFU mode automatically when the restore process is complete. In case your iPhone gets stuck in DFU mode, follow these steps to exit the mode:

• iPhone 8 and later: Quickly press and release the Volume Up button, then quickly press and release the Volume Down button, then press the Side button until the Apple logo screen appears.

• iPhone 7 and 7 Plus: Press the Volume Down and Side buttons simultaneously and release them until you see the Apple logo screen.

• iPhone SE, iPhone 6s, and earlier: Press the Volume Down and Side buttons simultaneously and release them until you see the Apple logo screen.

Conclusion

That's all. We hope you now have a better understanding of DFU mode. Please note that unexpected things may happen during restoring iOS no matter in DFU mode or recovery mode, so it is necessary for you to back up your iPhone first to avoid data loss.