Good news from the Jailbreak scene, iPhone Dev Team and Pod2g announced that the untethered jailbreak for devices with A5 processor (iPhone 4S and iPad 2) has been completed and they are doing the process to eliminate the last bugs and desgining a friendly UI for users!

Ever since the December release of @ pod2g’s “corona” untether for iOS 5.x on A4 and earlier devices, all eyes have been on the attempts to extend it to the A5 devices: the iPhone4S and iPad2. Due to the combined efforts of @ pod2g and members of the iPhone Dev Team and Chronic Dev Team, we’re nearly ready for a general release! All technical hurdles dealing with the underlying technique have been overcome, and it’s now all about making the jailbreak as bug free as possible.

The Untethered Jailbreak for devices with A5 processor is expected to be a modified version of Corona ( exploit by pod2g) used in the previously released Untethered Jailbreak for A4 devices.The new jailbreak tool will be available from both the Chronic Dev team and by the iPhone Dev team, in different forms:

Chronic Dev have incorporated the overall flow into a GUI that runs on your Mac or PC

iPhone Dev have incorporated the exact same flow into a command-line interface (CLI). This will allow us to help users through individual steps of the jailbreak manually, to both help the user and help improve the overall flow. Although the CLI will also allow the user to perform the entire jailbreak from beginning to end, we anticipate it will be more useful in debugging the occasional errors. The CLI currently has over 20 individual options (in addition to the single “jailbreak” option) that should be useful during debug after the GUI release.

Once all the bugs in the flow are worked out, we’ll also incorporate it into the redsn0w GUI (but still leave the CLI freely available too). In order to maximize the chances of the jailbreak working for everyone, the redsn0w GUI will use native Apple iTunes libraries – this technique is slightly different than how the Chronic Dev GUI handles communications, and should provide nice combined coverage for all the odd computer configurations out there.

Appliances and iOS versions which will be addressed in Corona A5 Untethered Jailbreak is the following:

• iPhone 4S: 5.0 (9A334), 5.0.1 (9A405 and 9A406)
• iPad 2: 5.0.1 (9A405)

If you are running a locked iPhone 4S and already upgraded your device to iOS 5.0.1 then read the following with caution:

iPhone4S owners looking to maximize their chances of achieving an eventual software-based carrier unlock should be staying at 5.0. Everyone else should be at 5.0.1. If you’re an iPhone4S owner who already updated to 5.0.1, it’s too late to go back down to 5.0, but if you’re on 9A406 it is possible to downgrade the BB by going to the 9A405 version of 5.0.1 while the window is still open.

[Via blog.iphone-dev.org ]

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