Hello, I connected a ProMicro 3.3V board on my PC. Windows recognized the material then the Arduino IDE detected it as "Arduino Leonardo/LilyPad USB". I uploaded the blink code to test the connexion but it ended by an error. Now each time I try to connect it to the computer, Windows alerts "unkonwn device", and the IDE doesn't see the board anymore.
I did it a second time, with another ProMicro board, it happens exactly the same thing. Do you know what happened?
I thought I should flash the bootloader but why it was recognized the first time?