iPhone 3G upgrade from 4.0 to 4.1 preserving baseband?

Discussion in 'iPhone' started by Faux Carnival, Feb 4, 2011.

  1. Faux Carnival macrumors 6502a

    Joined:
    Aug 1, 2010
    #1
    Hello, I have an iPhone 3G with baseband 05.13.04. I need to upgrade from 4.0 to 4.1 preserving my baseband. I'm on Windows. What do I need to do?

    Thanks.
     
  2. PsstGreek macrumors 68040

    PsstGreek

    Joined:
    Oct 21, 2010
    Location:
    Tampa Bay
    #2
    To go to 4.1 you would have to have the SHSH saved in Cydia. You'll also need a custom ipsw or create one in PwnageTool.
     
  3. Faux Carnival thread starter macrumors 6502a

    Joined:
    Aug 1, 2010
    #3
    What does a saved SHSH mean? And can I find this so called custom firmware on the internet? Thanks.
     

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