Notcom, developer of TinyUmbrella has posted a reminder message for all of jailbreak community to save SHSH blobs for iOS 5.0.1, and there are high chances that with the release of upcoming iOS 5.1 Apple does not allow to save SHSH blobs for the old firmware.
See also:
How to Save SHSH Blobs with TinyUmbrella
How to Save SHSH Blobs with iFaith
According to Notcom’s official blog:
With the quiet time between jailbreak and iOS version, make sure you get your SHSHs saved. I’ve been working on the TinyUmbrella rewrite (albeit sparingly due to real life demands). It’s important to make sure you have your 5.0.1 SHSHs tucked away safe. There is no guarantee that we’ll have things this good again.
You can grab TinyUmbrella for Windows and Mac through link below.
Download TinyUmbrella 5.10.06
i have a jailbroken iPhone 4 and before i updated to iOS 5.1 i saved the shah blobs for iOS 5.0.1 but when i go to look for the iOS 5.0.1 blobs i cannot find it and i did not delete it
also my iPhone shows that it has the shsh blob for 5.0.1 but when i fetch all blobs with redsn0w it does not show up
can you please help