COM port not detected after ST-LINK V2 connection to the board

[MNico.4]

I have a custom board on which there is an STM32 microcontroller. The board doesn't include the ST-LINK so I bought it and connected it to the board for the debug. After that my pc cannot detect the COM port anymore. Somebody can help me? Thanks

[Tesla DeLorean]

The stand alone ST-LINK/V2 doesn't have a UART, that is a V2-1 feature.

Get an ST-LINK/V3SET or use a serial dongle.​