I manually updated to 2.2 a few days ago (i'm non-rooted) and while I like the upgrade I want to go back to 2.1. The main reason is that my Sirius app doesn't work with 2.2. I have no idea how long it will be before Sirius issues an update so in the mean time I want to go back to 2.1. I have searched this forum and a few others and I haven't been able to find the manual update 2.1 file. Does anyone know where it is linked? The link in the old manual update 2.1 thread is no longer valid. Is it even possible to go back? Pleae help!