Arduino UNO R4 minima n'est plus reconnu

[davidrogerard]

J'ai réussi à me reconnecter à mes cartes, j'ai suivi cette méthode et ça a directement fonctionné.

DFU-port not working for Arduino Uno and Arduino Uno R4 minima

Summarizing how I solved the problem. The problem in my case started when I loaded a sketch that used the serial port. After loading that sketch, the USB driver no longer loaded. [image] To solve it: First press the reset button twice. In this way, from the Arduino IDE you can now find the Arduino R4 Minima attached to a DFU port. Load an LED blink sketch that does NOT use the serial port. After loading that sketch it should now load the Arduino Minima as a serial port. Check with the de…