I have a problem with installing driver in subject. In reality it is a problem with installing usbser.sys driver. I install many time Librepilot and aparently this program should
install right driver. But it wasn't. All time I have in right lower corner of program information that com1 is disponible to connect and program don't work. Zadig gave any result. Still I have Com1.
Finally, I have found in Device Manager many CopterControl and in different place. I removed all instance of this CopterControl and after that LibrePilot start working correctly,.
Any question, I will help. Thanks,
Kaz