Just a short update:
Australian Alpha-Monkey doing Bootloader testing with Mika. Going really well, flash on PC A and reflash on PC's B, C and D working wonderfully well. This simply means, once you flash the new Bootloader via the DFUseDemo, you won't ever have to play with the hardware switches again.
All future flashes can then be done directly via the GUI, without moving the Switch S1. Nice
Cheers,
Beano
Below sequence of pictures will tell the whole story.. apologies if I am verbose, but I am just excited...