Downgrade from 4.2.1 to 2.2.1

Discussion in 'iPod touch' started by JuegaBonito, Mar 3, 2012.

  1. JuegaBonito macrumors newbie

    Joined:
    Mar 16, 2011
    #1
    Hi,

    I want to downgrade my iPod Touch 2. generation to its original firmware 2.2.1.
    I downloaded the 2.2.1 from felixbruns.de and then tried to restore my iPod using that firmware.

    The problem is that iTunes gave me an error and said that it was an unknown firmware (error 20).

    Any other ideas on how to downgrade from 4.2.1 to 2.2.1?
     
  2. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #2
    Us an older version of iTunes like 8.1 and put your iPod into DFU mode.
     
  3. JuegaBonito thread starter macrumors newbie

    Joined:
    Mar 16, 2011
    #3
    Ok, but I don´t want to mess up my Mac with installing an other version of iTunes.

    Any other ideas? I heard something of TinyUmbrella. Would that be helpful?
     
  4. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #4
    TinyUmbrella won't help. Are you using an MB model iPod Touch and not an MC model? I think the older version of iTunes is a requirement.
     
  5. JuegaBonito thread starter macrumors newbie

    Joined:
    Mar 16, 2011
  6. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
  7. Spectrum Abuser macrumors 65816

    Spectrum Abuser

    Joined:
    Aug 27, 2011
    #7
    Why would you want to downgrade back to 2.2.1 in the first place? Nine times out of ten an application will require 3.1 at the minimum.
     
  8. Merthyrboy macrumors 6502

    Joined:
    Jul 21, 2008
    #8
    Could you set up another user on your mac and install the older version of iTunes on that so you don't mess up your main iTunes.
     

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