iPhone Will restoring an iPhone in order to jailbreak it make it update to latest version?

Discussion in 'Jailbreaks and iOS Hacks' started by Flac, May 10, 2015.

  1. Flac macrumors regular

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    Jan 28, 2015
    #1
    I am about to restore but it says latest version of iPhone software will be installed as well as all data being deleted.

    Does the software mean that it will no longer be 5.1.1?
    I downloaded Absinthe for 5.1.1 so if after the restore it is upgraded, I don't think it will work.
     
  2. Intell macrumors P6

    Intell

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    #2
    Depending on which device that it, it will restore it to the latest version of iOS or the latest version it supports. What iOS device do you have?
     
  3. eyoungren macrumors P6

    eyoungren

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    #3
    Restoring will always force an update to the latest signed version for your device.

    Not a big deal if that signed version is jailbreakable. A very big deal if it's not.
     
  4. Applejuiced macrumors Westmere

    Applejuiced

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    #4
    Yes, every time you restore itunes updates it to the latest ios version available for your device.
     
  5. Flac thread starter macrumors regular

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    #5
    I have iPhone 4. (The very first one that came out I believe) and currently 5.1.1 is installed.
     
  6. Flac thread starter macrumors regular

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    #6
    Ok, so since I am using 5.1.1 right now it will update it to that (or rather stay at that?)
     
  7. eyoungren macrumors P6

    eyoungren

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    #7
    No.

    What everyone is telling you should be read at face value because it's what we mean.

    If you restore your phone via iTunes, iTunes will force your phone to update to iOS 7.1.2 which is the last version of iOS that the iPhone 4 is capable of running.

    If you had an iPhone 4s you would be forced to iOS 8.3.

    If Apple is not signing a version of iOS you cannot restore to that version. Apple stopped signing iOS 5.x years ago.

    However, you have two things going for you depending on your circumstances.

    First, iOS 7.1.2 is jailbreakable. So, if you restore and are updated to 7.1.2 you can still jailbreak.

    Second, the iPhone 4 is the last modern iPhone than can actually downgrade. That is achievable through a bootroom exploit that was closed with the 4s. The kicker here though is that you will have needed to have saved your SHSH blobs for iOS 5.x in order to downgrade.

    Now, the above is the general information I have on this. Someone else would have to walk you through it as I have zero experience in doing that.

    I hope that answers your question.
     
  8. darricksailo macrumors 601

    darricksailo

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    Dec 18, 2012
    #8
    Actually, since the OP owns an iPhone 4, he can use iFaith to "dump" the blobs for the current iOS version the device is on

    So he can always just re-restore to 5.1.1, even if cydia doesn't have his device's blobs
     
  9. Flac thread starter macrumors regular

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    Jan 28, 2015
    #9
    Can you even go back to the first iOS that the iPhone 4 came with? That's what I want to do because it became really slow after an upgrade to a certain iOS.
     
  10. darricksailo macrumors 601

    darricksailo

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    #10
    Yes, if you have blobs saved for that iOS version
     
  11. Flac thread starter macrumors regular

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    #11
    I think I might have it saved in some old laptop … In fact I think I took the hard drive that had the blobs and replaced it with an SSD and I don’t know where I put the hard drive. I think the hard drive actually might have failed which might have been why I replaced it.
     
  12. darricksailo macrumors 601

    darricksailo

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    #12
    Check if cydia has them
     
  13. Flac, May 13, 2015
    Last edited: May 13, 2015

    Flac thread starter macrumors regular

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    #13
    Can someone check Cydia for me to see if there are blobs? I would go back to the very first iOS that came with the iPhone4, which I hope will make it fast enough for everyday use.
     
  14. Applejuiced macrumors Westmere

    Applejuiced

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    #14
    You have to check for your own device.
    Every device is unique and you cannot use someone elses blobs to downgrade.
     
  15. Flac thread starter macrumors regular

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    #15
    So I have to upgrade to 7 first to jailbreak so that I can use Cydia to figure out whether Cydia for my device will have the blobs? And what if it doesn't? I can't go back? If it does have the blobs will it have for the first iOS of iPhone4 as well as 5.1.1?
     
  16. tvotony macrumors regular

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  17. C DM macrumors Westmere

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    #17
    I don't believe it has been for a little while now.
     
  18. Applejuiced macrumors Westmere

    Applejuiced

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    #18
    No, you can just use tinyumbrella to find out what shsh blobs you have available.
     
  19. Flac thread starter macrumors regular

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    #19
    Is it possible that you have shsh blobs available even if you don't have any previous backups of the first iOS of iPhone4?
     
  20. Applejuiced macrumors Westmere

    Applejuiced

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    #20
    Yes, its possible.
    itunes backups have nothing to do with shsh blobs.
     
  21. Flac thread starter macrumors regular

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    #21
    So what determines what blobs you have?
     
  22. Applejuiced macrumors Westmere

    Applejuiced

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    #22
    Cydia used to save them. You can save them using ifaith, tinyumbrella or redsnow.
    And have them available locally or uploaded to various servers
     
  23. Flac thread starter macrumors regular

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    #23
    However you said "Every device is unique and you cannot use someone elses blobs to downgrade."

    Doesn't that mean even if people uploaded the blobs to various servers it wouldn't work on mine?
     
  24. Intell macrumors P6

    Intell

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    #24
    Your SHSH blobs may have been uploaded to Cydia. You have to check it.
     
  25. Flac thread starter macrumors regular

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    Jan 28, 2015
    #25
    How could it have been uploaded when i didn't upload it? Do certain percentage of iPhone4s use the same blobs?
     

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