[Working on mac.
Pixhawk is connected via FTDI 3.3V Cable.]
I tried to access the system console by typing the following to the terminal:
screen /dev/tty.usbserial-xxxx 57600 8N1
All I got is a blank screen, with no response to hitting the enter key.
Do I have to do the radio calibration first in the QGroundControl?
Thank you for your attention and time.