剛剛好奇搜尋一下
This version of blacksn0w is basically a repackaged version of the original unlock released by geohot, and the binaries which were recently released by MSFT Guy for 05.11.07 baseband on iPhone 3GS, running iOS 4.0 GM (formerly iPhone OS 4).

Simply follow the simple step by step guide below to unlock your iPhone 3GS on iOS 4, 05.11.07 baseband using blacksn0w RC2.

還沒時間翻譯
有興趣的人 或許可以試試下面的連結看看

http://marmarday.com/11302/blacksn0w...os-4-released/