Big Progress Made Towards Untethered iOS 5.0.1 iPhone 4S Jailbreak

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Last night we checked-in on the progress made towards bringing an untethered jailbreak to the iPhone 4S. The developer working on the hack, pod2g, had run into some trouble dealing with the cache on the smartphone’s A5 processor. He wrote that he had some idea of how to move past it, but that it might just take a lot of trials to get find what works. Now he’s made another announcement of further progress, and it looks like we’re nearly ready to see the fruits of his labor.

The cache issue pod2g was dealing with was something new introduced by the presence of a dual-core CPU. After getting his head around how the A5 was processing instructions, pod2g tried running his exploit in a single thread, and cleared the processor’s caches at just the right moment to ensure that his code executed as intended.

Apparently this took literally hundreds of different attempts to get everything working right; we’re just glad pod2g was dedicated enough to stick with it. It looks like there are some lingering stability issues to address, but we’re likely to see an untethered jailbreak on iOS 5.0.1 for even the latest Apple hardware in the very near future.

Source: pod2g

Via: TiPb

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About The Author
Stephen Schenck
Stephen has been writing about electronics since 2008, which only serves to frustrate him that he waited so long to combine his love of gadgets and his degree in writing. In his spare time, he collects console and arcade game hardware, is a motorcycle enthusiast, and enjoys trapping blue crabs. Stephen's first mobile device was a 624 MHz Dell Axim X30, which he's convinced is still a viable platform. Stephen longs for a market where phones are sold independently of service, and bandwidth is cheap and plentiful; he's not holding his breath. In the meantime, he devours smartphone news and tries to sort out the juicy bitsRead more about Stephen Schenck!