iPhone 3G downgrade

Discussion in 'Jailbreaks and iOS Hacks' started by rcjh22, Nov 13, 2010.

  1. rcjh22 macrumors member

    Sep 8, 2010
    I just bought an iPhone 3G off of eBay and it is running firmware 4.1. My question is, is it possible to downgrade it to 4.0 for unlocking or have they come out with an unlock for 4.1?
  2. mtnDewFTW macrumors 6502a

    Oct 26, 2009
    San Francisco, CA
  3. bytethese macrumors 68030


    Jun 20, 2007
    Unfortunately you cannot downgrade baseband, therefore downgrading it to 4.0 wouldn't help. I say this because there is only a very small subset of iPhone 3G's that have a certain version of Bootloader, version 5.8, that may be able to have their baseband downgraded.

    With that said, there is currently no unlock available for the baseband that is included with 4.1 firmware.
  4. g0rdhan macrumors newbie

    Nov 18, 2010
    Damn, I'm SOL I just checked my phones info with f0recast, I'm on 6.8 :/

    I'm btw in the same situation, upgraded too hastily and now i'm stuck.
  5. Applejuiced macrumors Westmere


    Apr 16, 2008
    At the iPhone hacks section.
    Give it a week or 2. There will be a new unlock.
    Be careful with upgrading when u need it unlocked.

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