How to downgrade from 5.1 to 5.0.1 on a Mac.

Discussion in 'Jailbreaks and iOS Hacks' started by babybuuutch, Mar 13, 2012.

  1. babybuuutch macrumors member

    Joined:
    Jan 16, 2012
    #1
    I checked tiny umbrella and I have save shsh blobs for 5.0.1 but everything I found to downgrade is for windows not mac. Is there a way to do this from a mac?

    I have a 3gs.
     
  2. TriJetHero macrumors 601

    TriJetHero

    Joined:
    Oct 13, 2010
    Location:
    World
    #2
    use redsn0w

    it van make a NO_BB custom IPSW which you than can use to Stich your blobs to the NO_BB IPWS and make a second custom IPSW which than can be used to downgrade to 5.01
     
  3. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #3
    OP must also have the APTicket saved along with hash file (some only have the hash file saved without the APTicket from before TinyUmbrella was updated to capture both).
    I believe Redsn0w will let you know if you have both when you try the stitching

    This will not work for A5 devices
    And when the restore is completed you will see a error -1, use Redsn0w to fix recovery
     
  4. babybuuutch thread starter macrumors member

    Joined:
    Jan 16, 2012
    #4
    How do I stitch a 5.0.1 firmware with your shsh blobs and APticket that you saved> Or find out if my APTicket is saved with my shsh blobs?
     
  5. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #5
    Redsn0w will tell you when you try to stitch them if you have only partial hashes

    Google for a tutorial
     
  6. babybuuutch, Mar 13, 2012
    Last edited: Mar 13, 2012

    babybuuutch thread starter macrumors member

    Joined:
    Jan 16, 2012
    #6
    THANK THANK YOU THANK YOU. I got it to restore.
     
  7. babybuuutch thread starter macrumors member

    Joined:
    Jan 16, 2012
    #7
    My problem now is I get the no signal/service and ultrasnow won't work. When I jailbroke I only checked to download cydia should I have checked the other options? I'm on the new bootrom of a 3gs.
     
  8. TriJetHero macrumors 601

    TriJetHero

    Joined:
    Oct 13, 2010
    Location:
    World
  9. cprewe macrumors newbie

    Joined:
    Jun 11, 2012
    Location:
    Venice
    #9
    What is stitching?

    Hi, sorry if this is a total/partial hijack, but I keep reading about stitching. What is it?

    I do have tinyumbrella and have used it to save blobs, but I have no earthly idea on how to stitch.
     
  10. TriJetHero macrumors 601

    TriJetHero

    Joined:
    Oct 13, 2010
    Location:
    World
    #10
    partial…

    Stitching is using redsn0w or sn0wbreeze to bring together in 1 file the IPSW and the SHSH/APticket so you can restore/downgrade 5+ firmware.

    Both SHSH and APTikcet need to be saved in order to do it.

    Check in redsn0w under EXTRAS/SHSH blobs/Stitch
     

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