Compass no longer detected in Ardupilot

ArduPlane
,
1

Ardupilot(Ver. 4.3.5) is no longer seeing my Matek M8Q-5883 GPS with Compass. Specifically the compass portion. Ardupilot sees the GPS with no issue.
So in my troubleshooting process how can I tell if Ardupilot is seeing the signals from the compass i.e. a hardware/cable issue or is it a software issue (Something I have messed up in Ardupilot).
To give more context, I updated to Ver. 4.3.5 yesterday right before I tried to calibrate the compass. Additionally, I just finished installing a DJI camera and was working with the different UARTs/serial ports on my H743 Wing. I have re-looked at all the serial ports and they look to be set up properly but I could easily be missing something.
Thanks in advance for your help and insight.

Duce

2

I have an issue where the compass is not detected after powering on a 900MHz telemetry radio. It seems the telemetry radio is causing interference, so maybe something similar is happening for you? Try powering off the air unit to see if it helps.

3

Chris thank you for your reply. It ended up being a bad solder job on one of the Dupont 2.54 pins for the compass which caused a bad connection the Matek board. Soldering on such small spaces is definitely something of an art I’m still working on.