Hi, i just flashed copter 3.5.1 on a tricopter frame (titus 600) with pixhawkk PX4 2.4.8 ( from banggood). With the new firmware i can’t arm the motor. The yaw servo received informations and move to center ( 1500) .The LCD screen on board and mission planner via USB don’t give information on non arming reason. The pixhawk don’t emitted non arming sound.
I can test the motors and servos via mission planner test pannel and all 3 motors and yaw servo are working. I do not enable FENCE.
I am also unable to downgrade to copter 3.4.6 version ( mission planner do not recognize the pixhawk?? but i am able to connect it via mavlink)
Any idea to help me