It might be, but I think the connections are all ok, I removed the 5V wire from my ESCs BEC because I am using the 3DR power module. I only have de GND and signal wires connected to the APM2.0. Would that affect it in any way?
"Hi guys! I have an issue with this final 3.0.1 release! When it was in beta stage it was all ok, but when it came off from beta my ESCs wont arm, they do the lipo cell count and then they constant beep... Any idea what this might be? I have…"