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Discuss [Tutorial] Difference between DFU Mode and Restore Mode at the iPhone "2G" (Rev. 1) - Hackint0sh.org; Hi guys, I just found another good tutorial at the german website http://www.macbug.de and decided ...
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    Lightbulb [Tutorial] Difference between DFU Mode and Restore Mode

    Hi guys,

    I just found another good tutorial at the german website http://www.macbug.de and decided to share it with you by translating it:

    There is a difference between DFU and Restore mode.
    While most people don't know it, this difference causes the "Error (1)" in iTunes trying to downgrade to 1.1.1 after accidentially updating to 1.1.3.

    The big difference between DFU mode and restore mode?:

    DFU mode doesn't boot up the "mac os" on iPhone - therefore it doesn't communicate with iTunes "as much" as in Restore mode and iTunes can't decide to interrupt downgrading the firmware etc.!!

    The restore mode is the one everyone tells you to use (with iTunes icon etc. at the end) while DFU mode works this way:

    1. Connect iPhone to Mac/PC - keep iTunes open
    2. hold down power and home button
    3. wait until red slider appears to shut down iPhone, keep holding down the buttons, count 4-5 seconds (while iPhone shuts down)
    4. release power-button, keep home button pressed (there should be no Apple logo! If it appears, you waited too long to release the powerbutton - try again )
    5. wait 5-10 seconds - iTunes should then prompt that there's an iPhone connected in "restore mode" - but it's different!

    Now at this point even with iTunes 7.6 you can downgrade to 1.1.1. without errors.
    While you usually startup the system with the known method with iTunes icon etc. this way the iPhone doesn't startup and iTunes can't actually regret downgrading.

    Greetings and thx to the german site macbug.de

    SpackY2k

    Guys, instead of thanking me, donate to paypal info@macbug.de to the students who run the site.
    Last edited by SpackY2k; 02-10-2008 at 01:00 AM.



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    Wow - that's really good!! Just think i have got my iPhone to downgrade.... looking forward for the results when it's back in iTunes in a few secs...!

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    Quote Originally Posted by DeeKay1911 View Post
    Wow - that's really good!! Just think i have got my iPhone to downgrade.... looking forward for the results when it's back in iTunes in a few secs...!
    should have worked, right?

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    thank you. this really works. i had been play with that stupid Error (1) for the whole night

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    it didn't work for me =(... i don't know what to do.... i've been trying everything!! i'm really stock here!...

    i try this method, and my itunes detect an iphone in restore mode, but my iphone looked like it was off... so i guess i was doing well... i try using first the version 1.1.2 and when it says preparing the iphone for restore, the iphone turns the screen white! and the itunes gave me the same unknown error (1)...

    please help me somebody =(


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    I started getting this error 1604 today as well. Tried the method mentioned above. Although I can get into this mode, I still can't load 1.1.1. using iTunes 7.4.6 from a Mac. I've been trying all night. I believe my iPhone may be pooched!

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    sorry, that should read iTunes 7.4.2

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    I'm doing all things right, my phone waits for the itunes to mention that its in restore mode, but after restore, it throws me a error [6] when did a restore from 1.1.2 ootb to 1.1.1

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    Thanks for the guide, this is exactly what I was looking for!

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    Thank you so much I think this is eactly what I needed!


 

 
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