Originally Posted by tech69x
Yes I changed from 1.9 to 2.0 I have done all of the above
I too would recommend double checking your endpoints on your radio. I'm not sure which one you are using, but I was using a DX6i and when I first started I could arm the board but couldn't disarm it. I realized that by changing my endpoints for rudder to 125% both ways allowed me to arm and disarm. Just a suggestion, if you haven't already tried it.