okay now understand my problem. i have connected my rc to my pc running ubuntu using mavproxy. i have connected the cube orange to the siyi a8 mini gimbal via UART port. i have set channels for control as follows. channel 6 to pitch, channel 7 to yaw, channel 8 to mount lock, channel 9 to zoom in and channel 10 to zoom out. on herelink Rc the scoll wheel is for channel 6 , the A short press is for yaw(channel 8 ), The B short press button is for mount lock, the c short press button is for zoom in (channel 9), d short press is for zoom out (channel9). when i move scroll wheel( channel 6), the pitch works perfectly. when i press button A the yaw moves to right direction only. when i press button B the gimbal returns to center. when i press button c the zoom in happens, when i press button D the gimbal pans to right 90 degrees , if i press again button d the gimbal pans to left 90 degrees. now when i try to control the gimbal from my PC using mavproxy, i type rc 6 to 1550 then the gimbal starts to pitch down. then i immedietly type rc 6 1500 to stop the pitch up motion of gimbal. when i type rc 7 2000 the gimbal yaws to right most direction. but when i type rc 7 1000 the gimbal is supposed yaw to the left most direction but it doesn’t. it keeps pointing to yaw right. when i type rc 8 1000/ rc 8 1500, rc 8 2000 i get a prompt of AP: RC8: MountLock LOW / AP: RC8: MountLock MEDIUM / AP: RC8: MountLock HIGH. i just get these messages but the gimbal doesn’t center at all, when i type rc 9 2000 / rc 9 1000 the gimbal zooms in and zooms out. when i type rc 10 2000/ rc 10 1500/ rc 10 1000 i get the prompt on console as RC 10: Camera Auto Focus HIGH / RC 10: Camera Auto Focus MIDDLE / RC 10: Camera Auto Focus HIGH. but i dont see any change in quality of video. the quality of video is sharp no matter the zoom. when i am connected to the drone via mavproxy and i give pitch up/pitch down from herelink RC the gimbal does the pitch up accordingly but while doing that motion its yaws right automatically. can anyone solve my problem.