SHSH blob question

Discussion in 'Jailbreaks and iOS Hacks' started by KoalaCola, Dec 27, 2010.

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  1. KoalaCola, Dec 27, 2010

    KoalaCola macrumors newbie

    Joined:
    Dec 27, 2010
    #1
    So I foolishly updated my iPhone to 4.2.1 today without saving my 4.1 SHSH blobs, if I restore my iPhone to factory settings (without restoring from a backup) will I be able to update it to 4.1 or will I still need the 4.1 SHSH blobs?
     
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  2. Myzhi, Dec 27, 2010

    Myzhi macrumors 6502a

    Myzhi

    Joined:
    Dec 15, 2009
    #2
    You need old saved SHSH files to downgrade to a firmware Apple won't allow. Thus, if you want to downgrade to 4.1, you must have saved 4.1 SHSH files and so on. And, what SHSH files you can save has nothing to do with what your phone is currently running. It only has do with what SHSH files Apple is currently sending out, right now only 4.2.1. Also, your phone does not need to be JB to save SHSH files. Just use Tinyumbrella.
     
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