If you’re using a classic Arduino Nano, you may need to manually install FTDI drivers.Alternatively, select your board in the Tools > Board menu. When selecting an “Unknown” port you will be prompted to select the board type manually. Classic Nano boards and some clone boards with generic USB chips will show up as “Unknown” in the board selector.In earlier versions of Arduino IDE 2, the Tools > Port menu option would only be displayed if at least one device was detected on a port.Ensure you’ve connected your board with a working data USB cable.Learn what to do if your board is missing from the board selector or Tools > Port menu.
