It's okay. There are worse things to mess up!
I have a 2008 vette. I put it in accessory mode, put the windows down, started the first update, then closed the door and was doing some other things in the garage. When I checked about 20 minutes later it was done with the first sd and I opened the door. That's when the power went off. Never thought that would cut the power, but it did nonetheless.
If the unit can be reflashed at a repair shop, then why can't it be reflashed by me?
Thanks for all your advice and Happy Thanksgiving.