Hi, I may have a similar problem. Am trying to update my firmware on sa-bt207 via ethernet. Downloaded no problem from the internet, but the player has been flashing "please wait" for over 4 hours now. I can't even turn the damn thing off.
Dunno about anyone else, but so many things I buy just don't seem to work properly these days. I wish manufacturers wouldn't release half-assed and unreliable products onto the market.