Have anyone found a successful way to flash the firmware? I held down the top right key and my board won't go into boot mode for flashing whatsoever. I even tried second top right keys, caps lock, esc and no success so far.
The keymapper wasn't flashing for me for some reason, wouldn't write anything or reboot my keyboard out of the boot mode.
I did have success flashing the hex file using the atmel flip software though.
Although if you're having trouble even getting into bootloader mode not really sure what the problem could be.
This is what I do to get my board into the boot mode
1. unplug keyboard
2. hold down top right key
3. plug in keyboard
4. let go of top right key