I have a dji 450 clone, flying with Taranis x9d trans., X8R receiver RC equipment with a CC3D flight board. I am trying to upgrade control boards to the Pixhawk using the Mission Planner from Ardu. Trying to setup the pixhawk 2.4.8 thru sbus on receiver. I put it all together with listed components and using Mission Planner upgraded the pixhawk firmware and finished setup, got it to arm and fly, but found pitch was reversed. So I took props off, connected back to mission planner and either messed up programing the pixhawk or messed up settings on Taranis. Now when plugged in the quad sounds and looks like it is ready to fly, speed controllers doing short beeps, lights on pixhawk normal except the armed light that stays flashing yellow. Hope that makes a little more sense! I live in a small Missouri town, not to much in this kind of help around here. Thanks for your time!