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Apple No Longer Signing iOS 5.0.1


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Well we all knew this day was inevitable but it's now official that Crapple has stopped signing iOS 5.0.1 FW making it impossible for A5 devices to restore to iOS 5.0.1. If you have an A5 device (iPhone 4S, iPad 2) and you need to restore your device you will NOT be able to restore back to iOS 5.0.1 thus preventing you from Jailbreaking your device. Even if you have your SHSH blobs it won't do you any good as there currently is no solution for downgrading/restoring A5 devices using SHSH blobs.

A4 devices on the other hand, which support iOS 5.0.1 firmware, can be downgraded only if you have a custom firmware, which has been signed by iFaith or stitched by redsn0w using your APTickets. These firmwares will still downgrade A4 devices because A4 devices contain a bootrom exploit known as limera1n. This is the big difference that sets A4 devices apart from A5 devices as A5 devices do not have a bootrom exploit at this time.

A5 devices updated to iOS 5.1 do not have an untethered nor tethered jailbreak, meaning if you’re at iOS 5.1 then you're now screwed as far as being able to jailbreak until a new jailbreak is created for iOS 5.1, which at the rate things have been going for A5 devices, I wouldn't expect one anytime soon. A4 devices have the choice to either downgrade back to iOS 5.0.1 or have a tethered jailbreak on iOS 5.1 with the latest redsn0w (0.9.10b6), which was released yesterday. I wouldn’t recommend the tethered jailbreak on iOS 5.1 because many tweaks and Cydia packages are not compatible nor programmed to work with iOS 5.1 yet. Not to mention that iOS 5.1 doesn't really bring any new great fixes or features so it's best to not even waste your time.

If you have an A5 device currently jailbroken on iOS 5.0.1 then I suggest you be very careful what you install on it. If anything goes wrong, forcing you to restore, you will NOT be able to get back on iOS 5.0.1.


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