February 27, 2024
Apple Stops Signing iOS 11.1.2, Downgrades and Restores No Longer Possible

Apple Stops Signing iOS 11.1.2, Downgrades and Restores No Longer Possible

Posted December 16, 2017 at 9:04pm by iClarified 路 17169 views
Apple has stopped signing iOS 11.1.2 which means that downgrading or restoring to that firmware version is no longer possible.

Currently, Apple's latest firmware is iOS 11.2.1 and developers have been seeded with iOS 11.2.5. If you accidentally update or restore, you'll find yourself on iOS 11.2.1.

Iam Beer of Google's Project Zero recently released an Async_Wake exploit that works on iOS 11.1.2. Jonathan Levin, author of MacOS and iOS Internals, confirmed the exploit works on the Apple TV and is planning to upgrade his jailbreak utility iLiberTV. Levin also says he will release a jailbreak toolkit described as "a dylib for those people who end up with a send right to the kernel_task port (a.k.a tfp0) in their process, but don't know what to do next."

Following closure of the signing window, Levin said, "HA. Apple closed the 11.1.2 signing window. Told ya so. Toolkit coming soon -- for those who upgraded in time or stayed in 11.x but below 11.2. If you're on 11.2.x - that's your problem. Don't wen ETA. Next time, read carefully and heed warnings."

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Apple Stops Signing iOS 11.1.2, Downgrades and Restores No Longer Possible
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Shubham Garg
Shubham Garg - December 20, 2017 at 5:43am
Either Apple should start seeding stable ios or start signing previous stable os because these iOS versions aint worth anything 馃槨馃槨馃槨 spoiled my 7 plus 馃槴
Dylan - December 17, 2017 at 3:06am
Lol I thought 11.2.1 was the one that had a jailbreak. Haha I鈥檓 dyslexic or just forgetful. Maybe I knew this whole time it was 11.1.2 and I鈥檓 just fooling myself. Oh well I keep IPSW files around for everything nowadays because you never know when you might need to downgrade for something.
jr - December 17, 2017 at 12:29pm
so if i kept a ipsw of 10.3.1 and i'm on 11.2, can I still downgrade to 10.3.1 even though apple stopped signinng 10.3?
tmel4198 - December 17, 2017 at 8:04pm
tmel4198 - December 17, 2017 at 8:05pm
You cant downgrade once a firmware is dine being signed
MUKAI - December 16, 2017 at 9:34pm
There goes the hopes to jailbreak anything
Evas10n - December 19, 2017 at 3:41am
Don鈥檛 matter how many restores you got, they ain鈥檛 no good if Apple isn鈥檛 signing them any more. Sure it鈥檒l all look great when you start it off but when you are around 85-90% mark it will give you the error code.
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