On Monday, iOS hacker – pod2G reported that his untethered jailbreak that works on iPhone 3GS, iPhone 4, iPod touch 3G, iPod touch 4G and Apple TV running on iOS 5 or iOS 5.0.1, didn’t work with iPhone 4S.

He mentioned that he was facing processor caching issues. He also provided another good news that he has made progress on the iPhone 4S jailbreak.
He Writes:

OK, figured it out, the A5 cache is not a problem anymore. I sorted it out by doing the untether in a single thread and by flushing all the dcache then all the icache in a row at a strategical point of the process.
It took me like a hundred of tests to find the key. Hard for the nerves.
For the tech guys, here is a link explaining issues related to self modifying code ( or code patching ) on the ARM platform : http://blogs.arm.com/software-enablement/141-caches-and-self-modifying-code/
Another news : I discussed with @saurik today about the launchd boot process, and he’s found one missing piece of the puzzle I needed to have a perfectly stable jailbreak. He’s definitly one of the best iOS gurus out there. Thank you saurik!

So it means that jailbreak guru is closer to a jailbreak for iPhone 4S and hopefully it will also work on an iPad 2.

With iOS 5.1 and iOS 5.0.2 release impending, it remains to be seen if pod2G will release the untethered jailbreak soon or delay for Apple to release the iOS software updates.

As always, we’ll update you as soon as we have furture update, so keep in touch with us at TechnoCareHub or follow us on Twitter or join our Facebook Fan page or subscribe to our RSS feed.