ohhh so close!... Win7 is a non-starter, but XP has promise....
as the screen blanks, insert the USB lead connected to XP with the reflasher software running
wait for the bing-bong USB connected noise
(a window may pop up with the protected!! file showing) dismiss it quick - you have 3 seconds!.... the "Update" button on the reflasher program is active - click it quick
apparently starts updating
bong-bing - USB disconnected - reflasher reports "Update isn't complete, please try again"