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JAILBREAK IOS 5.1 UNTETHERED: We finally admitted that the escalated obstacles presented by Apple’s A4 and A5 processor (iPhone 4S,4,3GS,iPad 2,1,iPod) would not likely be overcome by one individual or team
– but all together, we should be more than able to conquer any challenges encountered. As such, a diverse group of iOS hackers all decided to set aside our personal goals & egos, relax our die-hard team loyalties, and pool our respective skill-sets, talents & exploits to form an iOS Super-Hacking “Dream Team.”
Jailbreak iOS 5.0.1 for iPHONE 4S,4,3GS,iPad 2,1 untethered has been released finally. The Chronic Dev team with the help of Pod2g and MusclNerd of iPhone Dev team, has released: Jailbreak iPhone 4S, Jailbreak iPhone 4, Jailbreak iPhone 3GS, Jailbreak iPad 2, Jailbreak iPad, Jailbreak iPod Touch, Jailbreak AppleTv
Some photos with official untethered jailbreak for iPad 2, iPhone 4S.
DO NOT UPDATE TO 5.1, because you may lose your jailbreak! The rest of this post details the subtleties with this rule, but if there’s only one message to take home, it’s the overall “do not update” message! Now for the nitty gritty exceptions:
Soon after 5.1 appears on Apple’s public servers (i.e. iTunes starts to offer it), Apple will stop signing 5.0.1 SHSH blobs.
If you have an iPhone4S, the basic rule above is really the only rule: you cannot restore back to 5.0.1 once the 5.0.1 signing window is closed, no matter what (even if you saved your SHSH blobs).
If you have an iPad2 with saved 4.x hashes, you can in fact downgrade to that 4.x but you won’t be able to get to 5.0.1 once the 5.0.1 signing window is closed (even if you saved your 5.0.1 SHSH blobs).
If you have a device earlier than the iPad2, you can downgrade to whatever version you want, as long as you have saved SHSH blobs for that version. You’ll need the assistance of geohot’s limera1n exploit with tools like redsn0w to get into “pwned DFU mode” and bypass the downgrade restriction.