"Thank you Bill for the comment. The connection to autopilot is good. I am using old version firmware, not recent one. It is not that old. Version 3.2. Do you think the old version of firmware make this problem?"
At my mission planner program, I can not select flight mode at the menu screen. (refer to attached image). All show up blank at each flight mode selection.Normally it should show up flight mode seleciton menu at each flight mode selection, but mine…