Yesterday we showed to you how to Download Redsnow 0.9.11 b1 to downgrade iPhone 4S, iPad 2 and iPad 3, Today, MuscleNerd of iPhone dev-team has announced the release of Redsn0w 0.9.11b2 which will allow A5-devices’ users to downgrade iPhone 4S, iPad 3 or iPad 2 to enjoy the untethered jailbreak.
Update #1: We accidentally left out one of the two flavors (“9A406”) of 5.0.1 for iPhone4S. It’ll be in the next update, but in the meantime check if Cydia or TU saved your blobs for the other 5.0.1 for iPhone4S (“9A405”). Version 0.9.11b2 adds support for that second “9A406” flavor of 5.0.1 for the iPhone4S
Downgrading is only possible for iOS devices which have SHSH blobs saved with Cydia or TinyUmbrella, an activity that must have been performed on a jailbroken device at the time it was running 5.0.1.