QuickPwn 3.0 Beta 5 Released to Jailbreak iPhone OS 3.0 Beta 5; Includes Cydia 3.0

The fifth beta version of iPhone OS 3.0 which was seeded to developers few days back has been jailbroken.

iPhone hackers, HoZy and lilstevie have released an updated version of unofficial QuickPwn: QuickPwn 3.0 Beta 5 for Windows users to jailbreak the latest beta version of iPhone OS 3.0. QuickPwn 3.0 Beta 5 currently works with only iPhone 3G.

The latest version of QuickPwn also installs Cydia 3.0 which has been ported to work with iPhone OS 3.0.

Cydia 3.0 which has been ported to work with iPhone OS 3.0 by Jay Freeman (aka Saurik) currently does not include Winterboard, the popular jailbreak app which brought themes to the iPhone. Earlier versions of QuickPwn installed Icy an alternative to Cydia to install jailbreak apps.

You should also know that the iPhone Dev Team had warned iPhone 3G users against using the unofficial QuickPwn tool for the following reason:

The most important thing about the unofficial QuickPwn releases is that if you use them, you will kill yellowsn0w, possibly forever.

If you are new to the iPhone hacking world, yellowsn0w is Dev team's software method to unlock iPhone 3G which currently works only with baseband 02.28.00 which was included in iPhone OS 2.2, and if you use the unofficial QuickPwn tool; you will end up upgrading your iPhone 3G's baseband with the latest version included in the latest beta version of iPhone OS 3.0.

When iPhone OS 2.2.1 was released, Dev Team had released PwnageTool which allowed users to upgrade to iPhone firmware 2.2.1 but preserve the baseband. Since Dev Team isn't planning to release the PwnageTool for beta version of iPhone OS 3.0; you won't be able to preserve the baseband of your iPhone 3G. They have given the reasons for not releasing it for beta versions of OS 3.0 here.

We would recommend you to avoid using the unofficial QuickPwn tool to avoid losing the ability to software unlock your iPhone 3G even though a tool is available to downgrade baseband from 02.30.03 to 02.28.00 (which doesn't work with bootloader version 5.9 or higher).

It is also important to note that the beta version of iPhone OS 3.0 is only available to developers of iPhone Developer Program so avoid downloading some leaked version of the firmware as it needs a developer account to activate it and like any beta software.