For many times, George Hotz or his famous name Geohot has proven he knows what he’s doing and has helped many iPhone users in Jailbreaking or Unlocking their iPhone using his amazing tools such as Blackra1n, and now he comes out with Blackra1n to unlock iPhone on 05.11.07 baseband, so in other word, whatever carrier your iPhone uses you can unlock iPhone 3.1.2 (iPhone 3G or iPhone 3GS), because Blackra1n Unlocks iPhone for All Carriers!
And here is the video tutorial to Unlock iPhone on 05.11.07 baseband with blacksn0w:
But firstly you need to download Blackra1n RC3 To Unlock And Jailbreak iPhone 3G, 3GS 3.1.2
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