Worry, the Chronic dev-team certifies that we can always make a Jailbreak “tethered” ie requiring a reboot with wired connection.
It is, however, regarding the back, the iOS5 to a previous firmware, it may be more complicated. Indeed, henceforth, Apple will no longer sign the old firmware, but also completely changes the system firmware for signatures coming iOS5.
Up to now, the firmware was signed by Apple, and according to the ECID (one of the serial numbers of aircraft Apple) When performing a restore of the device. Now, it seems that Apple adds a signature for each random reboot, decrypted with the private key Apple, but not only at the time of restoration.
The hacker said they expected Apple to make this a firmware to another, and know that there are already ways to get around this.
Finally, they ensure that the device can be jailbreak with the process of limera1n GeoHot (and therefore some version of redsn0w) will still operate at least in tethered. Because the hack is done before the procedure for check key. By cons for future Apple products, Nothing is less certain : to an iPhone 5 impossible to jailbreak ??
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Update on iOS Jailbreak 4.2
How does the web talking about the firmware 4.2 but iTunes does not propose !
And yes, Apple has not officially released firmware, and yet crafty (like you who read) already using, and even the jailbreak without difficulty.
Apple would not even always the fault of Rerailing Limera1n GeoHot for its firmware 4.2.1, and it is always possible to jailbreak instantly with the method described on the forum.
iOS 4.2.1 GM Build 8C148 available to Apple developers'
The Jailbreak iOS 4.2.1 GM is possible on the iPhone 4, 3GS, 3G using the usual method with Redsn0w 0.9.6b2.
RedSnow also jailbreak iOS 4.2.1
As against a small worries remain : the released. Indeed, if you have an unlocked iPhone (release operator), it is better to wait a little longer before updating against iPhone.
Cydia not validated for IOS 4.2
Note also that Cydia not yet validated for IOS 4.2 more than Saurik currently working on the problem !
Jay Freeman AKA Saurik - Creator of Cydia
Jailbreak iOS 4.2.1 GM On iPhone 4, 3GS, 3G Using Redsn0w 0.9.6b2
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Tags: apple, cydia, dev team, GeoHot, iOS 4.2, iOS 4.2.1 GM, Limera1n, redsn0w
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