Hello,To answer your questions:Direct PC connection, no hub.It is a new board and it is working fine now.There was no ding-dong.I tried another cable (1 foot) and my STM32 board worked fine. The cable in question is probably a charging cable and not ...

I had the same problem. I changed from a 1 foot USB cable to a 3 foot USB cable, and the software was able to detect the NUCLEO-F439ZI board that I have. There was firmware update on the board, so I thought that it might fix the problem I went back t...