iPhone Possible to downgrade 4S to 5.1.1?

Discussion in 'Jailbreaks and iOS Hacks' started by tehreflex, Sep 19, 2012.

  1. tehreflex macrumors 6502

    Joined:
    Jul 30, 2009
    #1
    No I did not accidentally hit "update" or anything. Been jailbreaking since iPhone 3G.

    Will it be possible to downgrade the iPhone 4S back to 5.1.1 using redsn0w restore method? SHSH are saved with Cydia and all that. I was curious to try out iOS 6 and then go back to 5.1.1 so I can have my JB. Of course if not I will stay away from upgrading.

    Thanks in advance.
     
  2. TriJetHero macrumors 601

    TriJetHero

    Joined:
    Oct 13, 2010
    Location:
    World
    #2
    if you have your SHSH/APticket saved, yes than you can downgrade again.

    Check in redsn0w/Extras/SHSH blobs/verify if you have full blobs
     
  3. Carlanga macrumors 604

    Carlanga

    Joined:
    Nov 5, 2009
    #3
    You can as long as you have full SHSH and not partial of 5.1.1
     
  4. tehreflex thread starter macrumors 6502

    Joined:
    Jul 30, 2009
    #4
    Partial SHSH? Cydia doesn't grab full ones?
     
  5. teamjaycub macrumors 6502

    Joined:
    Oct 22, 2011
    #5
    "iPad3, i4S (and iPad2 owners who don’t satisfy #2) will always be able to RE-restore the current 5.x OS that’s already on their device. So if you’re at 5.1.1 when the window closes (and you’ve saved your blobs), you’ll always be able to RE-restore to 5.1.1 again. This makes the 5.1.1 jailbreak a lot less fragile — you don’t have to worry about messing up your install with funky extensions or getting into a boot loop, because you can always RE-restore from 5.1.1 to 5.1.1 again (or from 5.0.1 to 5.0.1 again, etc). But once you fall off the 5.x train by restoring to 6.x, you’ll be stuck there until the next jailbreak."

    From the Dev-Team blog

    So, the answer is no.
     
  6. tehreflex thread starter macrumors 6502

    Joined:
    Jul 30, 2009
  7. johndallas999 macrumors 6502a

    johndallas999

    Joined:
    Oct 9, 2008
    Location:
    Seattle
    #7

    Does this mean if you are at 5.1.1 you can "reinstall" 5.1.1 again (with saved blobs) but if you go to IOS6 you cannot go back to 5.1.1 even with blobs saved?
     
  8. teamjaycub macrumors 6502

    Joined:
    Oct 22, 2011
    #8
    That is correct.
     
  9. wordoflife macrumors 604

    wordoflife

    Joined:
    Jul 6, 2009
    #9
    I downgraded from 6 to 5.1.1 today without any saved blobs or whatever - I dont even know what they are

    Apple is still signing 5..1.1 so ...
     
  10. teamjaycub macrumors 6502

    Joined:
    Oct 22, 2011
    #10
    Yes they still are, but won't be for much longer.
     
  11. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #11
    As long as 5.1.1 is signed, all current devices can go back to it.
    Once Apple stops signing it, the scenario quoted above kicks in.
     
  12. johndallas999 macrumors 6502a

    johndallas999

    Joined:
    Oct 9, 2008
    Location:
    Seattle
    #12
    I, for one, hate that Apple does this and won't let us downgrade especially in light of all the complaints of lost map functionality etc...

    I wish they would let us go back at a minimum one verson of their iOS whenever we like.
     
  13. From A Buick 8 macrumors 68040

    From A Buick 8

    Joined:
    Sep 16, 2010
    Location:
    Ky Close to CinCinnati
    #13
    Any idea how much longer they will be signing this
     
  14. bun.bhay macrumors member

    Joined:
    Dec 6, 2011
    Location:
    Seatown
    #14
    From what tinyumbrella shows. it seems like apple stopped signing 5.1.1.[​IMG]
     
  15. dhlizard macrumors G4

    dhlizard

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    Mar 16, 2009
    Location:
    The Jailbreak Community
  16. soliloquent macrumors newbie

    Joined:
    Sep 21, 2012
    #16
    So since they stopped signing, is there ANY way I can get rid of ios 6? I decided to upgrade when I was drunk and omg, that was the stupidest thing I have ever done to my phone. I despise it, I just want 5.1.1 back or anything that isn't ios 6. Can anyone help me?
     
  17. xchampx13 macrumors regular

    Joined:
    Aug 4, 2012
    #17
    If you have the blobs saves with tinyumbrella, you can get back once there is an ios 6 jailbreak check at blog.iphone-dev.org for updates on that stuff.
     
  18. BumpyFlatline macrumors 68030

    BumpyFlatline

    Joined:
    Apr 11, 2012
    #18
    What type of device do you have? Are you using an A4 device or A5?
     
  19. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #19
    This is incorrect. A jailbreak will likely not allow a downgrade. The 4S is not succeptable to the Limera1n exploit so even with 5.1.1 hash and APTicket file, there is no way to get the nonce file from Apple to downgrade.
     
  20. gotluck macrumors 603

    gotluck

    Joined:
    Dec 8, 2011
    Location:
    East Central Florida
    #20
    so it sounds like we could really use a new bootroom exploit then?

    I love the freedom the a4 iphone 4 has :D

    well, i suppose the old bootrom 3gs has the most..
     
  21. dhlizard macrumors G4

    dhlizard

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    Mar 16, 2009
    Location:
    The Jailbreak Community
    #21
    Correct, until a boot level exploit if found, no going back.
     
  22. xchampx13 macrumors regular

    Joined:
    Aug 4, 2012
    #22
    Weird, it says that on the iphone-dev blog, that you will be able to downgrade once the jailbreak is out, oh well my bad.
     
  23. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #23
    Some devices will be able to re-restore to 5.x.x firmware, but not from iOS6 and not for a 4S.
    Perhaps you should read it again.
     
  24. wordoflife macrumors 604

    wordoflife

    Joined:
    Jul 6, 2009
    #24
    Damn it! Didn't get to save the SHSH blobs. Should've done it the other day - but was busy.

    Oh well.
     
  25. Nishi100 macrumors 6502a

    Joined:
    Mar 27, 2010
    #25
    I have an iPad 2 on iOS6 and have 'full' blobs. But I have tried using Tiny Umbrella to downgrade, but can't. Am I stuck on iOS 6 or can I downgrade?
     

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