If you remember, the legendary team released a tool called ‘Absinthe‘ to JailBreak iPhone 4S & iPad 2 on iOS 5.0.1. Due to the fact that this team also included DevTeam member MuscleNerd, they have updated their popular tool – ‘Redsn0w’. Now, Redsn0w has the capability to untether JailBreak your A5 based devices on iOS 5.0.1. It means that you won’t require to use Absinthe anymore if you are looking for a JailBreak.
In addition to it, we have many other features. If you have accidentally uninstalled the untether, it would let you re-install the JailBreak. Redsn0w also fetches saved SHSH Blobs/APTickets from Cydia automatically during the JailBreak. So, you don’t need to manually save them from any other tool such as TinyUmbrella. Moreover, it would now show additional information about your device, that is wether you are on an iPhone 3G with vulnerable baseband boot loader or an old bootrom in iPhone 3GS.
As usual, if you are lucky enough to own an old bootrom iPhone 3GS, the JailBreak remains untethered even on iOS 5.1. For A4 based devices, the JailBreak remain tethered on the same firmware. It is expected that the upcoming version of Redsn0w would support the ability to restore from the Redsn0w itself. In other words, without the need of iTunes from Apple. This is something new because it has never been possible before from any software/tool.
If you are waiting for iOS 5.1 untethered JailBreak, you can checkout our post about the progress on it. You can download Redsn0w for both Mac and Windows from here.