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Thread: Problem unlocking 3G 4.2.1 (BB 05.13.04)

  1. #1
    Default Cannot unlock iPhone 3G 4.2.1 (BB 05.13.04)
    Hey everyone. Sorry if already posted but I've been reading different threads all day but couldn't find anyone with similar problem and a solution for it.

    I have an iPhone 3G 4.2.1 and firstly it was updated by mistake via iTunes with official fw, so the baseband was 05.15.04, so I installed 06.15.00 and then downgraded it to 05.13.04, installed ultrasn0w, rebooted several times but it still shows "no service".

    I also tried reinstalling ultrasn0w and mobilesubstrate with no effect. Installed them via iFunbox - same thing. Sometimes it shows "searching..." after reboot or taking the sim out and back in but after a while it shows "no service" again.

    Really hope someone can help me unlock this thing.
    Last edited by withoutshade; 10-26-2013 at 12:40 PM.

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