I just want to say that I was trying to update my Sena 20S EVO. I tried many cables but it couldnt be recognized. Turned out I needed a Harley Davidson update manger program, since I have a Harley Davidson model of the Sena 20S EVO. And most importantly... a new cable!! Now it works like a charm. Dont trust your old cables! Thank you for your support Sena.