Controller board unknown and its a brushless gimbal, I can open the software and then open the com 6 port but then it tell me to connect to zyx=bmgc and the ubs is already connected to the gimbal. I was told by the seller that it is a "plug-n-play" gimbal. If I give the gimbal full up or down and when it reaches the max point of movement it sits there with the jitters. And while level the motors have a whine and hum sound.