- Unplug the usb light from the flex (keep flex plugged in)
- Go to the Alexa app, navigate to the echo flex the light was connected to and click Deregister (this is under device settings almost at the bottom in blue letters)
- Wait for the sequence to complete and for the device to be reset and enter pairing mode
- Register the echo flex with your Amazon account using the Alexa app
- Once Echo flex is registered and you have tested it works (play a song or reply to a command) plug the usb light back in
- The light was then recognized and I was ready to go