The Redsn0w update 0.0.12b1 brings support for untethered compatibility with iOS 5.1.1 (A4 devices only). This update inherits the Absinthe exploit to jailbreak, untethered, the iOS 5.1.1 operating ...
How to jailbreak any iOS 5.1 device including the iPhone 4S, iPad 2 and other A5 devices. This unlock should also work on devices using the A4 chip. ixibo.com Apple iOS 5.1 is one of the most popular ...