What is DFU Mode?

DFU stands for Device Firmware Update. DFU is all about upgrading your device. For instance, when Apple released iOS 6, you could either do an OTA update or do a manual update by downloading the firmware yourself. In the latter, you would use DFU mode to upgrade the firmware.

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Why You Required to Put iPhone into DFU Mode?

DFU mode is where the bootloader is mounted and the iPhone/iOS device gets ready to upgrade its firmware. DFU mode is often required when you are doing a manual upgrade using custom IPSW files.

How to Put iPhone into DFU Mode

How to Enter iPhone or iPad into DFU Mode in iOS 8 or Earlier iOS Version:

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Entering your iPhone in DFU Mode is pretty simple. (Note: If you own iPhone 7 or iPhone 7 Plus, here is how you can put it into DFU mode.) Here’s how it’s done:

Step 1: Connect your iPhone or iPad with your PC or Mac and make sure iTunes is running

Step 2: Switch off your iPhone by holding Power button and slide to power off

Step 3: Hold the power button for 3 seconds

Step 4: Press and hold the Home and Power (sleep/wake) buttons for sometime (10 seconds)

Step 3: After this, release the Power button but keep the Home button pressed for 15 seconds

Step 4: This puts the iPhone in DFU mode. The screen remains black.

Step 5: When you connect your iPhone to iTunes, a popup tells you that iTunes has detected an iPhone in DFU mode.

Typically, if you’re new to this, you might have to try a couple of times to nail it. If, on the third step, you see the Apple logo come up, it means you have to start again because the iPhone has booted normally.

How to Get iPhone Out of DFU Mode

It is quite easy to get your iPhone out of DFU mode.

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  • You just have to press and hold Home and Power buttons for about 10-12 seconds
  • Now, release the Home button but keep pressing the Power button till Apple’s logo comes up on the screen. Your iPhone is out of DFU mode.
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Jignesh Padhiyar is the founder of iGeeksBlog.com who has a keen eye for news, rumors and all the unusual stuff that happens around iPhone and iPad.