Mine stopped working after a few days. I was never able to flash it (tried Mac, Linux, Windows). The computer does not recognize the device. The documentation could be better. The software had a few links to reddit threads for support.
andresdThanks for your review. I hope you solved the issue by now, if not, I would love to help you out. Did you use kbflasher or the Knops App? What happens when you press down the top right key switch when you power the device? Does the led start blinking?