If u recieve a bad update just use rsdlite to flash 2.01, then manually install 2.1 and 2.2
I did this & it says 'please manually power up this phone' under status but it is still stuck with the 'M' after the progress has reached 100%...
Hmmm, that makes me kind of nervous. I don't want to have to redo everything on my phone, but to get rid of this 2.2 crap, it might be worth it.