A new XMM 6180 baseband in iOS 4.3 beta 3 through 4.3.5. It can be unlocked with TurboSIM Unlock like Gevey SIM, but there is no public software unlock. This baseband was preceded by 03.10.01, 04.00.08 and 04.00.09 between 4.2.1-4.3 beta 2.
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