Bluetooth - need for MavLink framing?

I’ve spent quite a bit of time trying to get a bluetooth telemetry connection to work - no success so far.

The devices (one connected to the flight controller, the other is my Laptop) appear to connect OK - and when I do a “connect” in Mission Planner - the bluetooth adapter status light indicates that the connection is active - but the Mission Planner connection fails with a “no heartbeat” message.

I noticed on my RFD900x SiK radio settings, there’s one specifically to enable MavLink “framing.”

I’m wondering if something like this might be needed on my bluetooth connection - and how I might enable it.

Thanks!