iPhone 3G downgrading firmware

Discussion in 'iPhone Tips, Help and Troubleshooting' started by momiller, Mar 29, 2011.

  1. momiller macrumors member

    Joined:
    Oct 24, 2009
    #1
    I have an iPhone 3G which is running slowly. It was suggested to me to downgrade the firmware to 3.1.3. I'm now on 4.2.1. Everywhere I looked to downgrade it the phone has to be jailbroken before I downgrade it. Is there a way to downgrade it without jailbreaking it? If so how?

    Thanks in advance.
     
  2. -aggie- macrumors P6

    -aggie-

    Joined:
    Jun 19, 2009
    Location:
    Where bunnies are welcome.
    #2
    You must jailbreak. What's your problem with jailbreaking? You'll never want to go back after you do.
     
  3. Crystal-RX, Mar 29, 2011
    Last edited: Mar 29, 2011

    Crystal-RX macrumors 68030

    Crystal-RX

    Joined:
    Dec 22, 2008
    Location:
    Seattle, WA USA
    #3
    Your phone does not need to be jailbroken in order to be downgrade to 3.1.3, this is wrong. Follow the following steps;

    1. Download 3.1.3 IOS for 3G to your PC.
    2. Download Tiny umbrella to your PC.
    3. Hook up your phone to PC
    4. Open Itunes, shift + restore at the same time and select 3.1.3 to restore.
    5. At the end, Itunes will give you a 1015 error. Run tiny umbrella and hit "exit recovery"
    6. You are done!
     
  4. momiller thread starter macrumors member

    Joined:
    Oct 24, 2009
    #4
    No problem with jailbreaking, just don't want to deal with the whole process.
     
  5. momiller thread starter macrumors member

    Joined:
    Oct 24, 2009
    #5
    I did as you said. One problem, I can't restore all my information now. It tell me the software is too old! Is there a solution to this or I have to do everything manually?
     
  6. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
  7. momiller thread starter macrumors member

    Joined:
    Oct 24, 2009
    #7
    Oh well. Sucks to be me.
     

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