Hi Ron,
I see there is a "firmware update..." submenu in the "Transfer" menu of the Mastermind Editor 4.1.0, which is great because updating via a USB key forces me to take my LT out of the board (in my setup, it is too tight to plug the USB key if I leave the LT on the board). Anyway, great feature, but I couldn't make it work, and get "starting bootloader", then "Time out waiting for device". Is it a bug? Or maybe this function is not yet implemented in the LT firmware? Thanks a lot!
This will only work in units built starting in March 2019 or later. Older units can be upgraded to handle editor updates, but it's a bit involved. We can do this upgrade if anyone wants to send theirs in, but I'm going to have to arrange something with dealers in other countries so we aren't shipping Masterminds across the globe.