Updating iPhone 3G to 4.2.1?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by Faux Carnival, Feb 3, 2011.

  1. Faux Carnival macrumors 6502a

    Joined:
    Aug 1, 2010
    #1
    Hello, I currently have an iPhone 3G version 4.0. My baseband is 05.13.04.

    I want to update my phone to the latest firmware 4.2.1 without updating the baseband. How can I do this? If I update through iTunes, will my baseband change?

    Thanks.
     
  2. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #2
    Pwnage Tool. Look at my signature. It has a link to a thread that explains how to achieve this.
     
  3. Faux Carnival thread starter macrumors 6502a

    Joined:
    Aug 1, 2010
    #3
    Thanks jav, but I'm lost. I have a 4.0 phone with baseband 05.13.04.

    What do I need to do to update to 4.2.1 and successfully be able to jailbreak&unlock my phone?
     
  4. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #4
    PwnageTool
     

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