iPhone 3GS unlock 5.1.1 HELP!!!

Discussion in 'Jailbreaks and iOS Hacks' started by Johnsonjulian38, Sep 19, 2012.

  1. Johnsonjulian38 macrumors newbie

    Joined:
    Mar 11, 2011
    #1
    My friend had an iPhone 3GS and wanted me to update him to 5.1.1

    I updated when he told me he had it unlocked for T-Mobile.
    I have been trying to re-unlock it for him using Redsnow and the older baseband so he can have GPS. What are the EXACT steps necessary to fixing his phone?
     
  2. PsstGreek macrumors 68040

    PsstGreek

    Joined:
    Oct 21, 2010
    Location:
    Tampa Bay
    #2
    What's the baseband now? You can either have AT&T unlock if you're a customer, or purchase and IMEI unlock from eBay.
     
  3. Johnsonjulian38 thread starter macrumors newbie

    Joined:
    Mar 11, 2011
    #3
    6.15.00 due to a restore.

    He is a T-mobile customer. Is there another way to unlock? I've tried jailbreaks but they are rendering his phone with no service.
     
  4. PsstGreek macrumors 68040

    PsstGreek

    Joined:
    Oct 21, 2010
    Location:
    Tampa Bay
    #4
    To unlock you'll need to downgrade the baseband using the newest version of rednsn0w http://www.ijailbreak.com/how-to/downgrade-06-15-00-05-13-04-iphone-3gs-3g-redsn0w-0-9-14b1-windows/

    Then you can either jailbreak and unlock with ultrasn0w (software) or get an unlock like the way I stated in my first reply.
     
  5. Johnsonjulian38 thread starter macrumors newbie

    Joined:
    Mar 11, 2011
    #5
    I have downgraded before, but would still get no service on his phone with the ultrasnow unlock, and it seems a lot of people get the error.
     

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