How to Jailbreak and Unlock 4.2.1 Firmware on iPhone 3G and 3GS - MAC
With recent iPhone firmware 4.2.1, it has become difficult for iPhone users to jailbreak & unlock their iPhone. This guide is for users who want to jailbreak & unlock 4.2.1 firmware on iPhone 3G and 3GS on a MAC operating system. If you have 05.14 or 05.15 or a lower baseband, continue reading... Jailbreak iPhone 3GS 4.2.1 Firmware - MAC Wi...
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