Ultrasn0w

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The first iPhone 3G unlock. Released on 01/01/09. [1]

A demo (of a console-only version of the app though) can be seen at http://qik.com/video/729275.

Credit

The dev team.

Exploit

Relies on an unsigned code exploit.

The actual unlock works by a daemon patching the baseband's RAM on-the-fly, overriding the carrier lock code. It is not permanent because of the signature checks - the bootloader has to pass the sigchecks and the baseband has to pass them too, so any change to the baseband/bootloader cannot be made.

(Currently there's no any further information)

See Also

External links