Downgrade from iOS 5?

Discussion in 'iPhone' started by TheLatestech, Jun 9, 2011.

  1. TheLatestech macrumors newbie

    Joined:
    Jun 9, 2011
    #1
    I'm new to MacRumors Forums. But I need Help!


    Downgrade from iOS 5?
    I have an CDMA iPhone which I need to downgrade to 4.2.8,
    Running iTunes 10.5 Beta.
    I have my SHSH blobs saved on Tiny Umbrella.

    First off, when I plug in my phone now, all I get is the Plug to itunes screen, I can't even get to the iOS5 setup screen.

    From there, it is recognized in iTunes, but not really in TinyUmbrella. It is recognized in tinyumbrella as the name "0" and/or a bunch of numbers.

    I keep getting directly back to itunes with a error 1.

    I need Help.Fast.

    Additional Details
    All I see on my iPhone is the Connect to itunes though, I still put it into DFU?

    and...are you sure I don't need my SHSH blobs from tinyumbrella?
     
  2. MarcBook macrumors 6502a

    MarcBook

    Joined:
    Jul 13, 2008
    Location:
    Jersey, Channel Islands
    #2
    I was able to downgrade to 4.3.3 (GSM model, of course) without having to do anything unusual at all. Just 'Restore' using the 4.3.3 file, restore from back-up using the last 4.3.3 back-up.

    I know this isn't particularly helpful, but my point is that (from my experience) there's nothing unusual that needs to be done to downgrade from iOS 5, I guess because Apple is still signing the last iOS 4 build.
     
  3. TheLatestech thread starter macrumors newbie

    Joined:
    Jun 9, 2011
    #3
    Ya, I do that, and it either comes up with the error (1), or it says that this iPhone is not eligible for the requested build.

    Really annoying.
     
  4. Tettrabyte macrumors newbie

    Joined:
    Jun 9, 2011
    #4
    DID you try modifying your host file. I was having trouble upgrading yesterday and I used the steps to change the host file, like if you are downgrading to an unsigned iOS version.
     
  5. BlindMellon macrumors 65816

    BlindMellon

    Joined:
    Apr 4, 2011
    #5
    Yeah, if you've used Tinyumbrella at all, it's probably redirected your host file to Cydia. Run it again and de select the option.

    Otherwise, down grading to 4.3.3 shouldn't be a problem. Then jailbreak it.
     
  6. TheLatestech thread starter macrumors newbie

    Joined:
    Jun 9, 2011
    #6
    The problem is that My device isn't even recognized in Tiny Umbrella.

    I'm thinking of just bringing it in to verizon, see if my warranty will get me anywhere...
     

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