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Thread: Downgrade 3GS from 3.1.3 to 3.1.2 & activate with iTunes

  1. #1
    Default Downgrade 3GS from 3.1.3 to 3.1.2 & activate with iTunes
    OK here is the method to activate your iPhone with iTunes if you have a factory unlocked iphone after downgrading to 3.1.2

    1. Downgrade using method described here

    2. Jailbreak with redsn0w (It will hacktivate your phone & you will have no signal)

    3. Now restore again using custom ipsw of 3.1.2 made using no activation option

    4. Restore will finish normally now (without any 1015 error) & iTunes will normally activate your iphone.. Enjoy :-)

  2. #2
    Livin the iPhone Life
    Join Date
    Oct 2009
    Thanked 382 Times in 368 Posts

    That doesn't work for phones with the new bootrom, which the majority of people have. Just saying.

  3. #3
    Fow windows users (sorry OSX guys, borrow a friends REAL computer), using QuickPwn 2.2 after step one to pull it out of recovery mode is easier, faster, and works with all 3G[S] unlike the custom firmware.

    1. Downgrade
    2. QuickPwn
    3. Activate
    4. redsn0w

  4. #4
    I'm with you looi3, when I hit the 1015 error I ram Quickpwm2.2 then backed up n synced, and Blackra1ned, worked like magic

  5. #5
    is quickpwn 2.2 is compatible in 3GS with old bootrom?

  6. #6
    Yep, mines week 36, old bootrom, worked a treat,I just blackra1ned it after restore from back up and syc and then welcomed Cydia back with open arms

  7. #7
    I never had my phone jailbroken and I now have 3.1.3, how can I downgrade as it asks for an old schh?

  8. #8
    You cant

  9. #9
    No afraid you can't.

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