I have a Zymkey 4i connected to a Raspberry Pi model 3B that has been working fine. I removed the zymkey to troubleshoot issues with my laptop/MobaXterm connection.After i reinstalled the Zymkey no longer syncs up with the Pi - it just shows the same steady fast flash. Nothing has changed with the hardware or software. I can’t find documentation on this topic.
Did you resolve your issue ?
Yes. Thank you!
It turns out that the power supply was marginal. Replacing the power supply solved the problem.