Can not detect USB Nucleo F411RE

[robotanh]

Spoiler

 

My ST-Link was working perfectly at first. I could connect it to USB, upload code, and toggle the LED using a button. However, after upgrading the ST-Link firmware, my computer can't detect it via USB anymore. Any suggestions on how to fix this?

[Imen.D]

Hello @robotanh and welcome to the Community :)

Try connect under reset.