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Jason Louie Author

Level 1

96 points

DFU mode to Restore

First: Put the device into DFU mode.

DFU MODE STEPS

Hold the Power Button (3 secs)
Continue holding the power button and also hold the home button (15 secs)
Release the power button while continuing to hold the home button (10 secs)
Your device should prompt with the "Connect to iTunes Screen"

Second: Plug it into your computer and open iTunes. It will either prompt to restore and up date or you can manually restore using the following steps.

IOS Restore Steps

Before restoring:

Verify that you are using the latest version of iTunes.
Back up your device.
Transfer and sync content to your computer.

Restoring your iOS device

Connect your device to your computer.
Select your iPhone, iPad, or iPod touch when it appears in iTunes. Select the Summary tab, and click the Restore button.
Click Restore.
After a restore, the iOS device restarts. You should then see "Slide to set up". Follow the steps in the iOS Setup Assistant.
If needed, restore your device from a previous backup.

MacBook Pro (13-inch Early 2011), OS X Mountain Lion (10.8.2)

Posted on Aug 28, 2013 8:49 PM

Top-ranking reply

jermainepaul

Level 1

5 points

Posted on Feb 24, 2014 12:09 AM

DFU mode is signified by having a completely black screen on the device.

Connect the iPhone to your computer and launch iTunes. Turn the iPhone off (hold down the power button at the top of the iPhone).

Hold down the sleep/power button and home button together for exactly 10 seconds, then release the power button.

Continue to hold down the Home button until a message appears in iTunes telling you an iPhone in recovery mode has been detected by iTunes.

View in context

29 replies

Apr 9, 2016 7:56 AM in response to amyourban

what about in windows ? if i encounter error 17 after having my iphone enter DFU mode. do you have any fix for this?

Apr 15, 2016 2:24 AM in response to Jason Louie

Hello,

Does that mean that the DFU mode offers you to SAVE CONTENT before restoring?
For me, it says directly that I have to restore the phone before using it, therefore losing content?

Thanks !

PS : it's an iPhone 4S, on the most recent version of iOS, not jailbreaked. I think that the issue is that it probably has low memory, lower than 250mo but it shouldnt be an issue as I had less in the past.... but somehow, when clicking by accident on update all apps, and cancel all of that, later on that same evening it decided not to pass the logo anymore...

modular747

Level 6

19,668 points

Apr 15, 2016 7:32 AM in response to herbertwest1

No.

Apr 15, 2016 8:00 AM in response to modular747

Thanks for the reply.

So both in FDU & Recovery Mode, iOS do not offer to save content before doing so?

Just external tools are supposed to allow that, but none would work for me as do not recognise that my phone is plugged. Looks like my data is lost, as I guess that by going to an Apple Store, the geniuses will simply recommend me to recover the phone and lose the datas?

AmishCake

Level 6

9,648 points

Apr 15, 2016 8:14 AM in response to herbertwest1

That means your data is already lost. You need to back up your data BEFORE a disaster occurs, not afterward.

Apr 15, 2016 8:29 AM in response to AmishCake

I was literally planning to do it the same evening it started to act crazy....

raian987

Level 1

4 points

Sep 27, 2016 1:04 PM in response to Jason Louie

I believe the screen stays blank in duf mode ... my ipad goes back in to the restore ipad loop every time it dies my real question is their a way or a tool to restore the whole firmware not just the software..... :/

Oct 21, 2016 3:28 AM in response to Jason Louie

Hi, no matter what I do, including DFU mode, its constantly quitting recovery and coming up with error 9. Is there anything else what I could do. I tried, I mean I think I tried all possible ways to recover my phone. I don't need any data on it. I made a backup recently, before it broke down. I just need to get IOS back so I can sell the thing in one piece not as spare parts.