downgrade 3g,4.1 to original 3.1.2

Discussion in 'Jailbreaks and iOS Hacks' started by kondpro, Dec 3, 2010.

  1. kondpro macrumors member

    Joined:
    Sep 24, 2010
    #1
    Hey guys i upgraded my 3.1.2 firmware to 4.1. Then jailbroke the 3g. I need to downgrade back to 3.1.2(i want to eventually run 3.1.3)

    I downloaded 3.1.3 firmware. And went to restore, to it. I got an error in itunes(1550).

    I Never saved any shshblobs, and am not sure weather they were saved automatically.

    Whats is the best approach for my situation? should i be able to downgrade to what ever the original firmware to the phone was?

    Am i doomed to ios4.1?
     
  2. PsstGreek macrumors 68040

    PsstGreek

    Joined:
    Oct 21, 2010
    Location:
    Tampa Bay
    #2

    To downgrade your 3G from 4.x.x to 3.x.x shsh blobs are not required. You sure it was iPhone error 1550 (that one doesn't exist). It should have been error 1015.

    Now you need to use TinyUmbrella to kick your iPhone out of recovery mode.
     
  3. kondpro thread starter macrumors member

    Joined:
    Sep 24, 2010
    #3
    ok ill give that a try and get right back to you.

    thanks for the fast response

    do i need to kick it out of recovery prior to doing the restore in itunes?
     
  4. PsstGreek macrumors 68040

    PsstGreek

    Joined:
    Oct 21, 2010
    Location:
    Tampa Bay
    #4
    No problem:apple:
     
  5. kondpro thread starter macrumors member

    Joined:
    Sep 24, 2010
  6. PsstGreek macrumors 68040

    PsstGreek

    Joined:
    Oct 21, 2010
    Location:
    Tampa Bay
    #6
    Good to hear.
     

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