Setting up my jdrones hex copter and the motors on number 7 and 8 channel make a constant beeping at 4 beeps per second. The ECS guide advises throttle is not in lowest position even though it was. I then put throttle in top position and plugged the battery in and motors on 7 and 8 channel beep every 2 seconds as if the signal wire is not connected to the ESC.
I did a full manual calibration of each ESC one at a time. I did a full APM rest and reinstalled the firmware. (3 times now) I checked the TX is setup properly and the functions in Raw, Radio for both input and output are all working in the correct sequence. All looks good there.
Any ideas on why the 7th and 8th channel are sending the wrong signal?