With the new iOS 5.1.1 released, except downgrading to a previous firmware version, it’s better to save SHSH blobs for late use like downgrading from a higher iOS to this version. NotCom has just released TU 5.11.00 with support for the latest version of iOS which allows you to save iOS 5.1.1 SHSH blobs, so you better get started.
With the recent RedSn0w release, the ability to downgrade your device’s firmware has been fully restored for A5 users. But to utilize the new feature, you need to have the SHSH blobs from an earlier version of iOS.
A lot of iOS users who got lazy and didn’t save SHHS blobs for iOS 5.0.1 are now suffering as the latest version of RedSnow has the capability to stitch the SHS blobs for iOS 5.0.1 through which an iOS user can downgrade from running current iOS to the lower version.
Following are the download links for the latest TinyUmbrella version :
Download TinyUmrella 5.11.00 On Windows [Direct Link]
Download TinyUmrella 5.11.00 On Mac [Direct Link]