How to restore backup firmware 3.13?

Discussion in 'iPod touch' started by cpliu903, Jul 6, 2010.

  1. cpliu903 macrumors newbie

    Joined:
    May 30, 2010
    #1
    My iPod touch 3G have authorized two macbook.

    A - Macbook - keep the backup of ipod touch firmware 3.13
    B - Macbook - upgrade through this macbook and keep the backup of ipod touch iOS 4.

    In my case, How to downgrade to firmware 3.13??

    Is it directly plug to "A - Macbook" and select restore??
     
  2. Mr Slippy IV macrumors 6502

    Mr Slippy IV

    Joined:
    Feb 24, 2010
    Location:
    Vail, AZ
    #2
    No, you must pirate the 3.1.3 software to restore from it.

    I'm sorry to say this, but I can't really help you for ethical reasons. You should have done your homework before updating to 4.0.
     
  3. cpliu903 thread starter macrumors newbie

    Joined:
    May 30, 2010
    #3
    Oh no. During update 4.0, iTunes have prompted the message auto backup.
    but unexpected cannot restore old version.
     
  4. devils punchbow macrumors member

    Joined:
    Feb 12, 2010
    #5
    You want to reverse to a older version firmware on your touch ? This sort of thing is not supported by Apple, but this is how it can be done......

    I did this recently. It was easy. Though 3.1.3 did not work for whatever reason. 3.1.2 did work properly. I made the mistake of using 4.0 as well.

    First you need a copy on your computer of the firmware file you want to install on your touch. Download that from here.....http://www.felixbruns.de/iPod/firmware/

    Then follow these steps. It pretty easy.......http://lifehacker.com/5572003/how-to-downgrade-your-iphone-3g[s] -from-ios-4-to-ios-313

    You'll be out of 4.0 in no time.......
     
  5. liamkp macrumors 68020

    liamkp

    Joined:
    May 29, 2010
    #6
    +1, ive heard that 3.1.3 never works, or at least i havent seen someone downgrade to it.
     
  6. philosopherdog macrumors 6502a

    philosopherdog

    Joined:
    Dec 29, 2008
    #7
    3.1.2 will definitely work and is available out there. Thing is you'll lose all of your app specific data when you do this and have to reset all of your information on the device. You can easily restore your apps however. Pretty crazy that Apple does this frankly: they put out of piece of crap of an os update and prevent you from reversing it. To the other poster that blamed the person for not researching the update first: come on; do we have to research an update before applying it? It's not the user's fault; it's Apple's fault. Period.
     
  7. cpliu903 thread starter macrumors newbie

    Joined:
    May 30, 2010
    #8


    when choose the firmware to store may be error:

    ipod could not be restored because firmware is not compatible
     

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