iPhone Downgrade to 6.1.4 with SHSH

Discussion in 'Jailbreaks and iOS Hacks' started by NttDocomo, Nov 20, 2013.

  1. NttDocomo macrumors member

    Joined:
    Jul 8, 2010
    #1
    Hi Everyone, finally I decided that I want to upgrade to iOS 7. I also saved the 6.0.1 and 6.1.4 shsh, just curious in case if there's any issue and would like to downgrade back to iOS 6 is that possible with the shsh I saved?

    Also I am curious, I tried using the latest TinyUmbrella to save the iOS 7 shsh but wasn't able to get it. Is it because Apple stop allowing us to save SHSH for iOS 7 or just because I haven't yet upgrade to iOS 7 so I can't save the 7 shsh?

    Thank you very much for all help and have a great day.
     
  2. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #2
    You can only downgrade if you have an iPhone 4 with complete SHSH blobs with the APT ticket.
     
  3. NttDocomo thread starter macrumors member

    Joined:
    Jul 8, 2010
    #3
    I see, so pretty much if I upgrade then I can't downgrade even with SHSH saved. That means I will lose the jailbreak as no JB is available for iOS 7.

    Is that's why TinyUmbrella is also not letting me to save iOS SHSH?

    Also I saved SHSH for my iPhone 4, wonder how to check whether I have the APT ticket? I just used TU to save the SHSH.
     
  4. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #4
    TinyUmbrella hasn't been updated for iOS 7.0.4 at this time. Because of that it will not be able to save any SHSH blobs.
     
  5. darricksailo macrumors 601

    darricksailo

    Joined:
    Dec 18, 2012
    #5
    It should all be good if you got it directly from apple. As of now, there's no program that will help check iOS 7 blobs
     
  6. NttDocomo thread starter macrumors member

    Joined:
    Jul 8, 2010
    #6
    Thanks Intell and darricksailo. So darricksailo, you should all should be good, do you mean that if I backed up SHSH for my iPhone 4 with TinyUmbrella then I should be able to downgrade back even if I upgrade to iOS 7?

    Or you mean that I can actually upgrade my iPhone 5 also and then downgrade back (if needed) with the 6.1.4 SHSH I saved?

    Thank you very much and have a great day.
     
  7. darricksailo macrumors 601

    darricksailo

    Joined:
    Dec 18, 2012
    #7
    Everytime you manually grab an SHSH blob directly from apple, the blob's apticket should be active. For shsh blobs for version of iOS 6 and under, use ifaith to check if they're valid. For an iphone 4, as long as you have complete shsh blobs, you will be able to downgrade

    for any device iphone 4s and higher, ipad 2 and higher, ipod touch 5th gen and higher, there is no way to downgrade even if you have shsh blobs saved

    shsh blobs are really only useful for iphone 4 and under devices and devices on iOS 5
     
  8. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #8
    Even with saved blobs you cannot downgrade an iPhone 5.
    About the iPhone 4 yes you can downgrade it if you have shsh blobs saved.
     
  9. honam1021 macrumors regular

    Joined:
    Nov 4, 2012
    #9
    I may be off-topic but I am curious:

    Redsn0w allows 6.x/7.x to 5.x restores on iPad 2 as long as you have shsh for 4.3.x and 5.x, can you downgrade to 6.x using the same method?

    I heard that Redsn0w baseband update code was broken by iOS 7's bb, is that true?
     
  10. TriJetHero macrumors 601

    TriJetHero

    Joined:
    Oct 13, 2010
    Location:
    World
    #10
    Only 5.x

    Not aware of the 7. X BB problem
     
  11. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #11
    See TriJetHero's post above. Apple's iOS 6 SHSH blobs are different in that a bootrom exploit is required to reuse them.
     

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