Downgrade iOS 5 A5 Devices of IOS 5.1 on iOS 5.0.1 Jailbreak iPhone or iPad 2 4S

Downgrade iOS 5 A5 Devices
In APTicket iOS 5 there is a new key that is created anew for each restore. This is checked at boot time. Unlike iOS 4.X downgrade you need for a downgrade within iOS 5.X now not only the SHSH blobs, but more in the APTicket. This is unfortunately not stored with A5 devices due to the lack of bootrom exploit. May only devices with A4 processor is secure and
therefore downgrade to earlier versions of IOS.

If you accidentally iOS 5.1 with an iPhone or iPad 2 4S updatete that will not come back to iOS 5.0.1 to install a jailbreak.

But there is new hope: Two days ago we told you that a downgrade iOS 5 A5 devices also for devices without APTicket A4 may be possible soon. iH8sn0w found a gap in APTicket-verification system, by which he was able to successfully downgrade his device of IOS 5.1 on iOS 5.0.1.

iH8sn0w tweeted But once again, that he will not publish the identified gap in APTicket system so quickly. He believes that they could better use for future reference. The reason for this is of course obvious:
iH8sn0w tweeted But

For ALL devices which are on iOS 5.1, it will very soon be an untethered jailbreak. A total of four developers have already announced almost two weeks that have successfully cracked iPad 3 with a userland jailbreak.
Apple is the bow and the gap in APTicket system known to be close of those immediately. 5.2/iOS iOS 5.1.1 would accordingly not be secured without downgradbar APTicket.
If there is no prospect at this point to a 5.1.1 jailbreak iOS 5.2/iOS, it could be with his iH8sn0w APTicket-gap solution for premature upgrader.
For these reasons, published his iH8sn0w found gaps in the APTicket not check before a new IOS or even iPhone version. Consequently, all continue to wait for a new iOS 1.5 jailbreak, if they have geupatet prematurely.

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Tags : iPhone 5   Unlock Jailbreak   iOS 5   iPhone to iTunes   HTC   iPad Apple      
Motorola Tablet   Jailbreak iPhone 3G   Apple TV 2G    Siri    Redsn0w    Untethered jailbreak
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