Argh, I'm an idiot -- had the flashing cable plugged into the micro-USB while the keyboard was *also* plugged into the USB-A sockets (which I knew doesn't work and apparently missed when originally debugging this). Closing as invalid.
Argh, I'm an idiot -- had the flashing cable plugged into the micro-USB while the keyboard was *also* plugged into the USB-A sockets (which I knew doesn't work and apparently missed when originally debugging this). Closing as invalid.