iPhone 3G 3.1.3 05.12.01 baseband, update and unlock?

Discussion in 'Jailbreaks and iOS Hacks' started by iSkyy, Jun 2, 2011.

  1. iSkyy macrumors newbie

    Joined:
    Jun 2, 2011
    #1
    Hello MacRumors!

    I feel a bit bad about my first post being a help request already but I need help, all the googling and looking around still left me uncertain :eek:

    As the title states I have a iPhone 3G on 3.1.3 with a 05.12.01 baseband which I now want to wipe and update to 4.x and unlock it for use with all carriers.

    From my understanding I need to update while preserving my baseband, that much I got. So far I used Sn0wbreeze 2.2.1 to make a custom 4.2.1 IPSW which was successful and afterwards I wanted to use Ultrasn0w but I don't want to mess up so I wanted to have a confirmation that what I do is right... so yeah any help is greatly appreciated, thanks in advance!
     
  2. Crystal-RX macrumors 68030

    Crystal-RX

    Joined:
    Dec 22, 2008
    Location:
    Seattle, WA USA
    #2
    Just install ultrasn0w 1.2.3 from cydia to unlock your phone.
     
  3. awadeee macrumors 68020

    awadeee

    Joined:
    Jan 21, 2011
    Location:
    Viper City
    #3
    What you are thinking is correct, OP. Restore with iTunes and then unlock with Ultrasn0w. You will find it under Manage > Sources > repo666.ultrasn0w.com.

    Enjoy your unlocked phone! :p
     

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