Yesterday, the Dev Team released one of the biggest updates to their RedSn0w utility in recent memory. The new version included a feature that allows A5 device owners to downgrade their firmware to one that is jailbreakable.
But those with an iPhone 4S who only had SHSH blobs saved from iOS 5.0.1 (build 9A406) haven't been able to use the new feature to downgrade. Until now. RedSn0w 0.9.11b2 brings support for the forgotten firmware...