Downgrade iOS 4.1 to iOS 4.0 on iPhone and iPod touch

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More info and download link: http://stateofjailbreak.com/tutorials/how-to-downgrade-firmware-using-tinyumbrella/

In this video I give a full tutorial of how to downgrade your firmware from iOS 4.1 to iOS 4.0 as well as any other version of iOS you have SHSH blobs saved for on the iPhone, iPod touch as well as the iPad.