How to upgrade jailbroken iOS 4.1 to 4.3.3?

Discussion in 'Jailbreaks and iOS Hacks' started by eetmee, Oct 7, 2011.

  1. eetmee macrumors newbie

    Jan 16, 2011
    How can I upgrade my iOS to 4.3.3 when I'm on the new broadband 06.15.00 and also have the iPad baseband? As I understand I can only install custom ipsw's, is that correct?
  2. DeftwillP macrumors 6502

    Jan 28, 2011
    Best I understand, you won't be able to do it. Apple is no longer signing 4.3.3
  3. labman macrumors 604


    Jun 9, 2009
    Mich near Detroit
    if you have shsh blobs you can other wise you are sol.
  4. eetmee thread starter macrumors newbie

    Jan 16, 2011
    I do have shsh blobs and I tried to upgrade to 4.3.3, but that was where I had many problems. It was tethered version, I couldn't boot the phone without redsnow and after a while a phone just turned off and went into DFU loop which I couldn't get it out of it. I got errors 28 all the time. Drained the battery and solved the problem.
    Now I'm on 4.1 which seems to be the only firmware that my phone will accept and I don't even know how to come back to 4.2.1 now! :/

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