tried unsuccessfully with a second windows machine on the same BOSSA version

Hi, thanks for your quick response.
micro-usb connector, screenshots attached

Hi, all.

I am updating my controller and following the online instructions.

My controller appears as COM3 when I connect it and refresh the BOSSA app.
When I select COM3, the error message appears as required.
Then after I close the error message, I do not get a new COM port number as described in the instructions.

Thanks in advance.
Rufus