iPhone Bootloader downgrade

Discussion in 'iPhone Discussion & Support' started by iphone.ahimsa, Feb 14, 2008.

  1. iphone.ahimsa

    iphone.ahimsa New Member

    Feb 14, 2008

    Hello everybody!
    I've an iPhone
    Info :
    + Bootloader - 4.6
    + Firware - 04.02.13_G
    + Version - 1.1.2

    I upgraded it using iTunes
    then now my iPhone is
    + Bootloader - 4.9
    + Firware - 04.03.13_G
    + Version - 1.1.3

    After Upgrading my iPhone it says "Connect to iTunes" and when I do so, it says "invalid SIM" and the Apple Software Engineer says that my iPhone is SIM locked and it needs to be unlocked using some software but he says that " As the Bootloader version is 4.9 it is impossible to unlock it " :eek: "And " We need to downgrade the Bootloader to 4.6 which was before, to unlock the iPhone " can anyone tell me how to downgrade the iPhone :( PLEASE :(

    -Ahimsa Das
  2. bangarunaidu

    bangarunaidu Well-Known Member

    Nov 6, 2007

    Thanks iphone.ahimsa, We are not aware of the solution, but it is good to know these kind of issues.
    If we come to know the solution we will let you know.