TinyUmbrella Updated With Support for iOS 5b3
TinyUmbrella The application that allows you to save SHSH your device from your Windows or Mac computer has just been updated to version 5.00.04 added support for IOS 5b3. Recall that, TinyUmbrella allows you to save the SHSH certificate so if you want to downgrade to an older firmware than the one installed and not signed by Apple, which would otherwise be impossible.
We highly advise you to save your SHSH so that can be used for future jailbreaks or downgrades, you can download TinyUmbrella from following links.
You can download it here: