iPhone 3Gs Unlock

Discussion in 'iPhone Tips, Help and Troubleshooting' started by liftsifter, May 21, 2011.

  1. liftsifter macrumors newbie

    May 21, 2011
    So here's the deal, I've got me an iPhone 3Gs and I want to unock it for T-Mobile. I'm running OS X Snow Leopard, and want to run 4.2.1 or higher on the phone. I've tried limera1n and it didn't work, and I also tried redsn0w. All to no avail.

    I continuously land on the No SIM screen, and don't know what I'm doing wrong. Whenever I try to add a build through iTunes, it just says "Not eligible for the requested build."

    Help please! :(
  2. Applejuiced macrumors Westmere


    Apr 16, 2008
    At the iPhone hacks section.
    What firmware and baseband is the 3GS on right now?

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