iFaith - SHSH Dumper Explanation

Discussion in 'Jailbreaks and iOS Hacks' started by Benji222, Jun 2, 2011.

  1. Benji222 macrumors 65816

    Benji222

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    #1
  2. Prodo123 macrumors 68020

    Prodo123

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    #2
    The only advantage that I see is that it creates pre-signed IPSWs to restore from, instead of saving the SHSH blobs and using a server to emulate approval.
     
  3. Benji222 thread starter macrumors 65816

    Benji222

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    #3
    Oh, thank you. thats pretty simple i guess
     
  4. awadeee macrumors 68020

    awadeee

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    #4
    It says you can even put SHSH files onto a brand new device that's running on newer firmware?! Hello white iPhone 4 on 4.2.1!
     
  5. gngan macrumors 68000

    gngan

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    #5
    I wonder how is that possible. We all thought there's no way to save SHSH when Apple is not signing it.
     
  6. Intell macrumors P6

    Intell

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    #6
    You can't do that. The SHSH blobs are pulled from the iDevice's current firmware to sign an IPSW of that current firmware for that iDevice.
     
  7. terraphantm macrumors 68040

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    #7
    Basically it's only useful if your idevice is currently on a firmware that's no longer being signed and you never got around to saving the SHSHs. The SHSHs are stored somewhere on the device (otherwise it wouldn't be able to boot). What this program does is recover those SHSHs directly from the device.

    For example I have an iPad 2 that shipped with 4.3, but I don't have the SHSHs saved since I bought it after 4.3.2 came out. With this, I can save the 4.3 SHSH. Of course for my iPad 2 it's kinda useless since it has a baseband
     
  8. awadeee macrumors 68020

    awadeee

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    #8
    From the article:

    This sounds to me like I can get SHSH from one iPhone and put it on another for that firmware? This article isn't very clear.
     
  9. Intell macrumors P6

    Intell

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    #9
    It cannot get SHSH blobs for a iOS version that the iDevice isn't on or Apple isn't sighing anymore. Because your iPad 2 is on 4.3.2 or 4.3.3, you cannot get your 4.3 blobs because they are no longer on the iPad. Lastly, this does not work on the iPad 2 because it lacks a bootrom exploit.

    They can only be used on the iDevice they come from and cannot be used on any other iDevice.
     
  10. MaxBurn macrumors 65816

    MaxBurn

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    #10
    Seems like a nice tool to get us around the final hurdle if you bought something used, needed to restore but didnt want to update.
     
  11. sigtau150 macrumors newbie

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    May 26, 2011
    #11
    Does this mean that I can use iFaith to backup my current setup - iOS 4.3.3, BB 05.16.02. Upgrade my baseband to iPad BB 6.15 to unlock the phone and if the issue with the GPS is that bad, I can use my iFaith backup to restore it to the BB I was at before upgrading to 6.15?

    Thanks!
     
  12. awadeee macrumors 68020

    awadeee

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    #12
    Basebands cannot be downgraded on a 3Gs and I don't believe that you can downgrade from 6.15.00 on a 3G either.
     
  13. db67fm macrumors regular

    db67fm

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    #13
    I have a new iPhone 4 CDMA runing 4.2.8.

    There is a software problem and I need to restore but I do not want up update to 4.2.9 (one day I would like to use jailbreakme 3.0).

    I have not saved my SHSH blobs yet.

    Will I be able to just restore 4.2.8 (ispw has not been downloaded by iTunes yet) without upgrading to 4.2.9?

    Or, do I need to use iFaith, and is iFaith even gonna work for me?
     
  14. Intell macrumors P6

    Intell

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    #14
    You need to run iFaith before you restore your iPhone.
     
  15. db67fm macrumors regular

    db67fm

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    #15
    Or, can I just download a copy of 4.2.8 ispw from iClarified and add it to iTunes and do a restore without upgrading?


    If so, how do I add the ispw to itunes on a WinXP PC?
     
  16. Abs_p macrumors 6502a

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    Jul 15, 2011
    #16
    It wont work because apple has stopped signing 4.2.8

    Download ifaith
    Dump the shsh
    Sign 4.2.8 With the dumped shsh blobs
    Put phone in pwned dfu
    Shift restore in iTunes
    Redsn0w
     

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