Reimage from Top port

I was installing my new u50 appliance today and during the applying of the updates power got cut to the device.
It rebooted to a Grub error 17
I decided to use the flash drive they shipped with the device to re-image it.
Holding F11 during boot did not work, I had to tap it repeatedly. Could be my keyboard.
I had the USB flash drive in the bottom port. A screen or two into it and it failed to find a file related to the GUI and started looping.

I turned it off and moved the flash drive to the top USB port and it seems to have worked.

I would recommend a postcard with the directions on how to do this in a baggy with the flash drive. Or just add them to the sticker on the Flash drive.

When I got back to the updates screen there are a lot less of them needed. That would indicate to me that the software on the flash drive was newer than on the device. I don't see this as a problem.

So my question is: Is all of this normal? Or do I have other things to worry about.

Brian