Conflict Between SBUS Receiver and Air Unit SBUS Port

When using an SBUS receiver, the SBUS signal wire must be connected to the SBUS pad on the front side of the flight controller (this pad internally uses UART2). If you are also using a DJI air unit, and it is connected to the flight controller through the dedicated 6-pin socket on the back, then you must disconnect the SBUS signal wire of the air unit from the flight controller. Otherwise, the SBUS receiver will not be recognized correctly by the flight controller.

You can use tweezers to remove the SBUS pin from the 6-pin connector (or simply cut the wire), and make sure to insulate the exposed wire properly.

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