The USB-serial on a RedBoard Qwiic is not functioning. I recently purchased this board and was trying to program it. I tried this on a MacBook Air running Ventura 13.2.1 and on a Windows 11 Dell. I installed CH340 drivers on both machines. In device manager, the serial port does not show up on the COM port branch, nor does “Unknown Device” show up in the USB branch. There is no audible recognition sound when plugging the board in as is the case with all other USB devices. I believe the board is defective.
I solved my own problem. The cables I originally tried were power only.
Excellent!