Hi I am having trouble getting my Schuberth SC2 and my Schuberth RC4 Handlebar remote to work together.  (I used this with my Schuberth SC1) They keep dropping the connection between my SC2 and my Garmin Zumo. If I pair the helmet mounted remote with the SC2 then all paired items play well together. I really liked my handlebar remote as I didn't have to take my hands off the bars. Are these two items compatible?  Or can the RC4 receive a software update?