Definitely with hackers who build bridges like MuscleNerd, life is just a bowl of cherries and most precisely, the iWorld is full of the joys of spring! Undoubtedly, you should keep holding your horses all the time in anticipation for what’s coming next in the Jailbreak community starting from now and just after a couple of minutes since MuscleNerd has publically announced and released the latest Redsn0w 0.9.11b1 Update which supports downgrading from iOS 5.1.1 to iOS 5.1 and iOS 5.0.1 firmware on iPad 2, iPad 3 and iPhone 4S.

If you recall, it was only a two days since MuscleNerd has announced via his Twitter account that he’s working on a Redsn0w 0.9.11b1that allows iUsers to downgrade their iOS firmware in case they rushed into updating into iOS 5.1.1. Apparently MuscleNerd was working his fingers to the nails to release an update that soon and in so little time.

Redsn0w 0.9.11b1:

Even though the new Redsn0w 0.9.11b1 update’s release was a bolt from the blue, it definitely will be a reason for every iUser, who’ve been having their iPhone 4S, iPad 2 or iPad 3 stuck with the iOS 5.1.1 or iOS 5.1,  as happy as Larry! Although the Redsn0w 0.9.11b1 release came as music to our ears, it will be no use getting it if you don’t have the SHSH blob files saved for the iOS firmware you want to downgrade to on your jailbroken iDevice and in case you’re not sure if you’ve saved these blob files before you update your iDevice, you might need to check Cydia as it usually backs up and saves the SHSH blob files automatically. Amazingly, MuscleNerd has fulfilled his promise and released the Redsn0w 0.9.11b1 update in the least possible time, taking one of the two jailbreak things we’ve been waiting for out which means now we’ll be looking eagerly at the iPhone Dev Team, naming, Pod2g on hold for the untethered jailbreak on iOS 5.1 firmware.

Redsn0w 0.9.11b1 Notes from Dev-team’s blog:

• You cannot downgrade without the personalized SHSH blobs for your device at that lower firmware.  You need to have fetched those blobs while the signing window was open, using either Cydia’s built-in TSS@Home feature, or with TinyUmbrella.  The new Restore screen of redsn0w lets you choose either the remote blobs or local ones (for the earlier firmware).  If you don’t know where TinyUmbrella put your blobs, TinyUmbrella has a button that will show you (copy them out of that folder and feed them to redsn0w).
• The A5 downgrade method actually updates to the latest firmware before downgrading to the earlier one.This process updates your baseband to whatever is newest.  DO NOT USE THIS METHOD IF YOU RELY ON UNOFFICIAL UNLOCKS of your iPhone4S.  Those who used the temporary SAM technique to unlock their iPhones to specific SIMs shouldn’t be affected by this baseband update.
• This method can be fixed by Apple with a firmware update.  It’s a (pleasant) mystery why they haven’t fixed it yet, because reverse-engineering of the restore ramdisk indicates they do know about it.  It’s possibly too niche to bother to fix right now.
• The least-tested devices with this method are the iPad2,3 and iPad3,2 (because we don’t have those models).  If you do and you feel like experimenting, please let us know how it turns out in the comment section below!
• This update involves a bunch of new redsn0w code.  We recommend sticking to the previous version 0.9.10b8b unless you’re specifically using this new feature, until all the bugs are worked out!  (Note: If redsn0w gets stuck at the “Waiting for device” stage for more than 30 seconds, you’ve hit a pesky GUI bug…that will be fixed in an upcoming version!)

Download Redsn0w 0.9.11b1:

• Redsn0w 0.9.11b1 for Mac OS X
• Redsn0w 0.9.11b1 for Windows (be sure to run in Administrator mode)