It was initially expected that the untethered iOS 4.2.1 jailbreak might be released somewhere around the Christmas Eve. But if this latest tweet by Comex is anything to go by, we may not see an untethered jailbreak for iOS 4.2.1 by this Christmas.
Earlier this month, Comex of Spirit and JailbreakMe fame confirmed that a more efficient userland-based untethered jailbreak method for iOS 4.2.1 will be released before Christmas 2010.
MuscleNerd of the iPhone Dev Team has confirmed that he has got untethered jailbreak working on the latest iOS 4.2.1 firmware. He further explains that this a “backup” plan to Comex’s upcoming userland method and that it is generalizable.
iSHSHit is a new Cydia app that is an alternative to Tiny Umbrella. It lets you save and backup SHSH blobs directly off your iOS device. It also has the original functionality of being able to send your saved SHSH blobs via email, which is a very handy feature. It also automatically uses the Cydia On-File service, meaning that your SHSH blobs will also be saved on the Cydia servers.
The iPhone developer and hacker behind Sn0wbreeze has confirmed that Cydia has started saving SHSH Blobs of iOS 4.2 betas for the next untethered jailbreak on the final version of iOS 4.2.
Apple has already seeded the final Gold Master version of iOS 4.2 to developers. Public release is looming near. Once the new firmware is out, Apple will stop signing the old firmware, which will make it impossible for you to get SHSH blobs for iOS 4.1.
Just a couple of hours back, iPhone hacker MuscleNerd tweeted to say that he thinks that iPhone Dev Team has found a way to extend current untethered jailbreaking tools to work on all A4-processor based iOS devices.
The SHAtter exploit based GreenPois0n tool is all set to arrive on October 10. But unfortunately, it will only jailbreak the fourth-generation devices like the iPhone 4, iPad, iPod touch 4G and the Apple TV 2G. This limitation is because of the nature of how the low level bootrom exploit SHAtter works.
We already did a complete step by step guide on how to save SHSH blobs (ECID SHSH) files of iPhone OS 3.1.3/3.1.2 and iPad OS 3.2 on Windows using AutoSHSH. But then I received lots feedback via email from users on OS X who couldn't figure out on how to save their iPhone, iPad or iPod touch SHSH files using a Mac.
The initial release of Spirit had this bug, which accidently deleted all photos from the iDevice which you used to jailbreak with it. If you were wise enough to make a backup before jailbreaking your device, you can now recover it using iPhone Backup Extractor.