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Thread: iphone 3gs 3.1.3 baseband 05.12.1jailbroken

  1. #1
    Default iphone 3gs 3.1.3 baseband 05.12.1jailbroken
    what is the easiest way to unlock my iphone for use with tmobile.

    i cannot use cydia because i am getting an error that is just to hard to fix. so i cannot download ultrasn0w

    can i follow the tutorials online on jailbreaking my device on my firmware sins after words u have to restore trough itunes wont it make me upgrade to 4.0?

  2. #2
    Retired Moderator
    Join Date
    Jun 2009
    Alhambra, CA
    Thanked 2,202 Times in 1,924 Posts

    You need ultrasn0w to unlock.

    With Cydia this way, you will probably have to restore. But dont do it if you dont have your SHSH files backed up you will be forced to go up to 4.0.1.

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