Well, guess what? I bought a new USB cable and now everything works, at least on the M1 Macbook.

Not sure what happened. The original 3 cables I used are definitely data cables as I used them with an Arduino Nano 33. But they were maybe a little old?

Hi, I bought two of the above boards recently and I couldn't detect any COM ports on both boards. I have tried it on MacOS, Windows and Ubuntu, on M1 Macbook and another AMD Ryzen-based laptop (Acer Swift 3), used 3 different USB cables, but nothing worked. The board has CP2102 USB-serial bridge and...