Serial port cannot control Hollyland Tech August 24, 2022 08:57 OVERVIEWS: When connect to your PC or other control device but can't contorl the camera. Check whether the protocol, address and baud rate of camera are consistent. Check whether the control cable is properly connected. Related articles How to enter the web setting page? How to set Arocam C2 to landscape when live streaming? How to add Arocam C2 to Live software? Comments 0 comments Article is closed for comments.