[TenTec] CDC Bootloader Problems with Argonaut VI Firmware Update

[Steve Berg]

I managed to update one of my Argonaut VI radios using the latest 
firmware upgrade.  When I tried to do the same on the other one, I kept 
getting CDC bootloader error messages.  I tried another computer, and 
they were the same on that one.  I installed the 64 bit USB to UART 
drivers, but to no avail.  What am I doing wrong?

Steve WA9JML