Copter 4.0.4 update and no link to mission planner via Mavlink


Is anyone experincing the same issue ?

Maybe i made a mistake somewhere, if so, please advise.

I upgrade my FC to the last stable version, did the upgrade of mission planner too.

I cannot link my mission planner to my Cube now, using RFD 868 +.

Thanks for helping.


Can you connect the Cube with USB cable?


Yes, i was able to connect with USB and i finally managed to get the mavlink working.

But i don’t know how and why as i did not change any parameter after the update.

I did a restart several time and i got the connection.

Thanks for helping.