UnTHETERED 4.2.1 unlock on 3GS?

Discussion in 'Jailbreaks and iOS Hacks' started by yosi199, Feb 7, 2011.

  1. yosi199 macrumors member

    Joined:
    Apr 12, 2010
    #1
    Hello everyone. I'm trying to help out a friend here with a
    3GS 05.11.07 – MODEM FIRMWARE
    NEW BOOTROM
    VER – 4.0.

    He currently has a THETERED version and he wants to know whether he can upgrade to 4.2.1 and also unlock the basband?

    any help?
     
  2. Crystal-RX macrumors 68030

    Crystal-RX

    Joined:
    Dec 22, 2008
    Location:
    Seattle, WA USA
    #2
    If his phone is on 4.0, why it is tethered? He just need to use Jailbreakme.com from safari and jailbreak it. He will then has an untethered jailbreak. All he needs to do then to install Ultrasn0w from Cydia to unlock his phone.
     
  3. yosi199 thread starter macrumors member

    Joined:
    Apr 12, 2010
    #3
    Yeah well he wants to upgrade to 4.2.1, question is if ultrsn0w will unlock he's baseband?
     
  4. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #4
    Only if he installs the ipad BB and thus losing his GPS function.
     
  5. CooKieMoNs7eR macrumors 68000

    CooKieMoNs7eR

    Joined:
    Nov 18, 2009
    #5
    I'm in the same situation here man, my friend has an iPhone 3G 4.1, he want's to upgrade to 4.2.1 because the untethered jailbreak just came out, but he wants to know if the unlock is available and works, anyone know anything about this??
     
  6. awadeee macrumors 68020

    awadeee

    Joined:
    Jan 21, 2011
    Location:
    Viper City
    #6
    use TinyUmbrella to upgrade your firmware without upgrading the baseband? I don't know why you'd want 4.2.1 though if you're on a sturdy 4.0 unlock.
     
  7. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #7
    That's only for iphone 4's.
    He's talking about a 3GS.
     

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