maxtorman, thanks loads! You are the lone ray of sunshine in this otherwise dismal affair. AlanM and the deletion of posts/threads on the Seagate forum board is the absolute low point here. It's the thing that absolutely shakes my confidance the most.
In a moderately early post someone speculated that there's "no way to check for or update firmware through USB." Nothing else was said about USB.
Can a firmware update be made via USB? I have an ES.2 500GB drive in an external USB enclosure. I know that that's an odd combo. Can the drive firmware be updated with that setup?