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Basic Knowledge About DFU Mode on iDevice

By Lois Green, Monday, October 10, 2016

As a user of iPhone, iPad or iPod touch, maybe it wouldn't be strange for you about the DFU mode. DFU, the acronyms of Device Firmware Update Mode, is a mode to upgrade or downgrade the firmware of iOS device. It allows you to choose the firmware you want to install and you can solve some system problems while your device is in this mode. For most users, you can fix some system problems through Recovery mode. Compared with it, the DFU mode is much more comprehensive. If you are not good at solving the system problem of your device, it would be better to ask someone else that can do that because it is complex process that requires technical skills.

Do you want to know more about DFU mode? If you do, please continue to read.

Part 1: When to Use DFU Mode?

Users would enter the DFU mode in the following situations:

1. iOS device can't enter the system. For instance, iPhone is stuck into white Apple logo screen, or iPhone keeps restart. In this situation, you may need to try to enter the Recovery mode first. If it couldn't help, DFU is the second choice.

2. Make your iPhone or iPad jailbroken or SIM unlock. It requires the custom firmware that is suitable and need to access DFU mode to complete the operation.

3. Users can use DFU mode to upgrade or downgrade iPhone, iPad or iPod touch.

Part 2: How to Enter DFU Mode?

Please follow the steps to enter DFU mode:

1. Plug iOS device into computer via USB cable that is matched and run iTunes on PC.

2. Power off your iPhone by pressing the Power button.

3. Press and hold down the Power/Side button for three seconds.

4. For the iPhone 6s and early, hold the Power button and Home button for 10 seconds at the same time. After that, let go of the Power button. 

For the iPhone 7 or 7 Plus, hold the power button and Volume Down button together for 10 seconds, and then release the power button.

For the iPhone 8/8 Plus, quickly press the Volume Down and Side button for 10 seconds. Next, release Side button and keep holding the Volume Down until your device is detected in DFU mode.

Put into DFU Mode

5. Keep pressing the Home button or Volume Down button (for iPhone7/7 Plus) as long as you get a messages as below on the screen.

iTunes Detect iPhone in Recovery Mode

6. If there is a completely black screen on the device, then your iPhone/iPad/iPod touch is in DFU mode.

Note: If there is an Apple logo or iTunes logo on the screen, your device is not in DUF mode.

Part 3: How to Exit the DFU Mode?

While it is a little complex to enter the DFU mode, you can exit this mode easily. Please keep your connecting device and PC, and then hold both the Home button/Volume Down button and the Power button until the Apple logo is displayed on your iPhone's screen.

Exit DFU Mode in iPhone

Part 4: How to Fix DFU Mode Safely?

Even though you have exited DFU mode, does the data still exist on your iPhone/iPad? To protect the contents on the iDevice, FonePaw iOS System Recovery can fix the same case with clearer directions.

1. Launch iOS System Recovery

Launch FonePaw iOS System Recovery on your PC and then move your mouse to "More tools". Do not forget to use USB cable to connect phone to PC.


2. Go on Recognizing Your iOS

The iOS phone will be detected so please press "Start" to move forward.

Check Your Device

3. Select Model of Your iPhone

As for DFU Mode, you may enter "Advanced Mode" to deal with it. The software will direct you to get the right firmware on the device so please check whether the model is for your mobile phone. You can check the model withe details on the back of the iDevice.

Download Firmware Package

4. Repairing the iPhone in DFU Mode

When you can see the processing bar on the interface, there means that your iOS device is being recovered and do not disconnect the phone to the computer.

Repairing Device

Any questions in fixing DFU on your iPhone ? If yes, please make a comment below or contact us directly!

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