A new version of TinyUmbrella, the tool that allows you to take backups of SHSH blobs (ECID SHSH) has just been released to include support for iOS 4.3.4.
Apple released iOS 4.3.4 and iOS 4.2.9 on Friday to fix the JailbreakMe 3.0 vulnerability and the untethered jailbreak used in tools like Redsn0w, PwnageTool and Sn0wbreeze for iOS 4.3.1, iOS 4.3.2 and iOS 4.3.3.
The backed up SHSH blobs (ECID SHSH) are required if you want to downgrade to the previous iOS version as Apple usually stops signing them after a new iOS software update is released.
Semaphore – developer of TinyUmbrella announced the release of the new version on his blog, but has warned jailbreakers and unlockers to avoid upgrading to iOS 4.3.4 or iOS 4.2.9:
Apple has finally come out with their ‘fix’ for the pdf vulnerability that JailbreakMe 3.0 uses to jailbreak devices. In proper good form, @comex has released a much better* fix for the vulnerability which also incidentally allows you to stay jailbroken 🙂
I’ve updated TinyUmbrella to save 4.3.4 SHSHs (as well as the other ones Apple is still signing). So grab the latest if you want to save 4.3.4 for nothing else than for the sake of completeness.
You can download the latest version of TinyUmbrealla from Semaphore’s blog if you have upgraded to iOS 4.3.4.
You can checkout our step-by-step guide on how to take a backup of SHSH blobs:
Note: If you have jailbroken your iOS device then Cydia will automatically store the SHSH blobs (ECID SHSH) when you launch it so you don’t need to use TinyUmbrella to take a backup.
As always, let us know how it goes.