Jason Louie

Q: DFU mode to Restore

First:  Put the device into DFU mode.

 

DFU MODE STEPS

 

  1. Hold the Power Button (3 secs)
  2. Continue holding the power button and also hold the home button (15 secs)
  3. Release the power button while continuing to hold the home button (10 secs)
  4. 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:

Restoring your iOS device

  1. Connect your device to your computer.
  2. Select your iPhone, iPad, or iPod touch when it appears in iTunes. Select the Summary tab, and click the Restore button.
  3. Click Restore.
  4. After a restore, the iOS device restarts. You should then see "Slide to set up". Follow the steps in the iOS Setup Assistant.
  5. 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

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Q: DFU mode to Restore

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  • by mellerars,

    mellerars mellerars Jan 7, 2016 11:05 PM in response to jermainepaul
    Level 1 (0 points)
    Jan 7, 2016 11:05 PM in response to jermainepaul

    jermainepaul wrote:

     

    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.

     

    Google led me to this page when searching DFU related topics and found out this is great. helped me rescue the iphone to the normal state.

  • by zygfryd samuel alpheus,

    zygfryd samuel alpheus zygfryd samuel alpheus Apr 9, 2016 7:56 AM in response to amyourban
    Level 1 (4 points)
    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?

  • by herbertwest1,

    herbertwest1 herbertwest1 Apr 15, 2016 2:24 AM in response to Jason Louie
    Level 1 (4 points)
    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...

  • by modular747,

    modular747 modular747 Apr 15, 2016 7:32 AM in response to herbertwest1
    Level 6 (19,329 points)
    iPad
    Apr 15, 2016 7:32 AM in response to herbertwest1

    No.

  • by herbertwest1,

    herbertwest1 herbertwest1 Apr 15, 2016 8:00 AM in response to modular747
    Level 1 (4 points)
    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?

  • by AmishCake,

    AmishCake AmishCake Apr 15, 2016 8:14 AM in response to herbertwest1
    Level 6 (9,388 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.

  • by herbertwest1,

    herbertwest1 herbertwest1 Apr 15, 2016 8:29 AM in response to AmishCake
    Level 1 (4 points)
    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....

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