TinyUmbrella 5.01.00 is released by Notcom that includes support to save iOS 5.0.1 SHSH blobs for iPhone, iPod Touch or iPad. According to official blog:
“Even though there is still no working solution for restoring 5.x on iPhone 4S I have released a 5.01.00 so you can at least save 5.0.1 SHSH. I have added tentative support for at least saving 5.0.1 SHSHs for iPhone 4S but as of now we are unable to use them fully.
As soon as more information is available I will update.”
How to Save SHSH Blobs with TinyUmbrella
Those who are not familiar with TinyUmbrella, this tool allows users to save SHSH blob for iDevices including iPhone, iPod Touch, iPad and Apple TV from Apple Server and Cydia which are required to downgrade iDevice firmware to an older version.
Download TinyUmbrella 5.01.00 for Windows
Download TinyUmbrella 5.01.00 for Mac