That is unusual. There is no way to completely brick the scanner during a firmware update...the worst that can happen is that the firmware can be partially written, which would result in your having to redo the update from Step 1 (including following the steps to press certain keys while powering it on). Have you tried to do so?
Thanks for the info. Unfortunately the link you provided went to an error page. I have tried 2,9 and power button and I have tried 2,9,hold and power button. Tried for different amounts of time but still nothing.