Have just installed the HDMI module on my P3 Pro - the Go App (iPad) shows as being Disconnected from controller. Controller also doesn't connect to camera functions via two buttons. However, replacing just the original plastic cover (USB only) restores full connection to P3 Controller/RPA and full controls. Therefore I presume that the ribbon cables are all ok and the board itself is working - but that the HDMI port within the cover is not working and causing everything else to fail. Has anyone had a similar problem and is there an easy solution?