Hi voyager56!
yes, that's exactly the procedure that I've been following. Maybe this can sound weird for everyone that succeeded by doing this way, but it doesn't crank with my unit. I really am a very methodical guy and take my time to read everyone's experiences before advancing (also like to share my own experiments). That's why I think that perhaps my updater is corrupted, as all steps go ok and only this piece of sw doesn't recognize or "wink" to my 3790 and a few seconds later, though, both windows offers to open mass storage unit and anti-virus to check on it. I have both updater and generated rgn file in the same folder as well. I believe by all the readings that being an LMT edition has nothing to do with the mishap, so I'm losing my hope of making it.