Before configuring the GCS software, the aircraft flight controller serial port must be configured correctly.

1. Connect the GCS laptop directly to the flight controller via USB.

2. Open Mission Planner (or equivalent), navigate to Config/Tuning → Full Parameter List.

3. Configure SERIAL1 as follows:

   Parameter	Value
   SERIAL1_BAUD	57600
   SERIAL1_PROTOCOL	MAVLink2
   SERIAL1_OPTIONS	Hardware flow control enabled

4. Reboot the flight controller.

Note

If the LINK LED on the Aircraft Hardware Unit remains blinking red after boot, verify these settings are applied correctly.