iOS 4.2.1 Jailbreak Released; Unlock Shortly

Apple yesterday released the iOS 4.2.1 update for its line of touch screen devices, and hackers wasted no time in getting the jailbreak software released to the internet community.

The iPhone Dev-Team have released a new version of redsn0w for both Mac OS X and Windows that will jailbreak all iOS 4.2.1 compatible devices. Depending on which device, however, it could result in a 'tethered' jailbreak. This means that anytime the device loses power or gets rebooted, it will have to be reconnected to a computer again before returning to the jailbreak state.

The exception to this is old devices such as the iPhone 3G, iPhone 3GS models with older bootrom version, and non-MC iPod touch 2G. These devices are still vulnerable to older exploits and will still retain their jailbreak even after a power cycle.

Those who rely on a carrier unlock should steer clear of this jailbreaking solution for now, as there is no way of retaining the unlocked state through the redsn0w software.

Read more at the Dev-Team blog.

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  • rantoc
    This is a good start, allow the user to actually use THEIR purchased hardware as they see fit. Only odd that they have to void warranty in order to be able to free it from the grasp!
  • uruquiora
    user : "allow the user to actually use THEIR purchased hardware as they see fit"
    Steve: " what ?? what ??? i can't hear you ! say it again ????!!!"
  • g00fysmiley
    and how many people bought the phoen OFF contract? not to play devils advocate but if you buy a phoen on contract through carrier subsidies of coarse they aren't gonna want you to unlock the device while under said contract time.

    solution is just use things like virgin mobile or boost if thats hwo you feel and if you wanna bring an unlocked device like this article says unlock it yourself and accept that the warrenty is gone