Baseband Firmware Now Downgradeable from 1.1.1 to 1.0.2

Discussion in 'iPhone' started by carfac, Oct 12, 2007.

  1. carfac macrumors 65816


    Feb 18, 2006
  2. Croatian macrumors 6502

    Oct 14, 2006
    Ontario, Canada
    Does that mean now if u had an unlocked iphone 1.0.2 and u upgrated it to 1.1.1 u can go back to old baseband and still use your non AT&T Sim

    also if u have a 1.1.1 iphone out of the box, would this put it back to the point old iPhones were so u can unlock it and use it with any other SIM and make calls
  3. lonnielove macrumors regular

    Jun 28, 2007
    I was reading this last night, and it appears so.
  4. carfac thread starter macrumors 65816


    Feb 18, 2006
    I am not sure that an activation is available in 1.1.1, or at least an easily workable one. If you upgraded to 1.1.1 (and bricked) or have a native 1.1.1, you can downgrade the phone to 1.0.2 (which has been available for a while), and then this lets you also downgrade the baseband (which is new).

    Then you can unlock and activate at 1.0.2 to use on alternate carriers, if that is what you want. I know the paid method will unlock a sim at 1.1.1, but I am unclear that you can use T-Mo et. al. on that yet.

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