The unofficial version of PwnageTool for iOS 4.1 on iPhone 3GS has been released. It can jailbreak iPhone 3GS (with old bootrom only) using iOS 4.1 custom firmware. For those of you who don’t know, PwnageTool for Mac enables iPhone users to upgrade to the new firmware without upgrading the baseband, hence making it possible to jailbreak and unlock the phone using the Ultrasn0w software. This version of PwnageTool unfortunately doesn’t support hacktivation, so you will have to either use officially supported SIM, or the phonebook SIM card method to activate the phone before unlocking it with Ultrasn0w.
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