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Thread: baseband confusion

  1. #1
    Default baseband confusion
    my sister from the states has an iphone 4, 4.1 firmware with the baseband thats not unlockable. if she upgraded to,lets say a different firmware, will her baseband change so she can jailbreak then use an available unlock method or will her baseband stay the same?

  2. #2
    Livin the iPhone Life
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    Nov 2007
    Arkham Asylum
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    the baseband will stay the same. Once it has been upgraded it can no longer be downgraded.

  3. #3
    i know there is an unlocke for higher firmwares. what i mean is if she upgrades her firmware will her baseband upgrade also. for example if she upgrades to ios 5.0.1 will she be able to jailbreak then unlock? will her baseband change?

  4. #4
    this is taken from the sticky. you better off staying with 4.1 and or upgrade only up to 4.2.1 and 4.3.x as you can still use the Gevey sim to unlock. if you go to 5.0 or 5.0.1 there is no hardware unlock.

    iPhone 4

    Baseband Firmware Unlock

    1.59.00 4.0/4.0.1/4.0.2 Yes (Ultrasn0w)
    2.10.04 4.1 Gevey Sim
    3.10.01 4.2.1 Gevey Sim
    4.10.01 4.3.X Gevey Sim
    4.11.08 5.0/5.0.1 None

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