aha, also second sim. It could be useful if you keep it disabled for the beginning. AFAIR (TJC) it has issues.
I guess it is ofono there, but anyway - keep 2nd sim down.
What is happening is when ofono starts it registers as HFP in the bluetooth subsystem and you have the HFP available. You can check this in bluetoothctl by typing “show” and you see Handsfree Audio Gateway.
So perhaps you can test this with 2nd sim on and off and tell us the results here.
Then what happens when you reboot with 2nd sim off or is it now working when 2nd sim is off.
Again if I remember correctly someone reported that it was working when first HF is connected, but not sure. To me it makes no sense. It is interesting to know what ofono and pulseaudio are doing on top of bluetooth
- is it registered
- is the profile offered to connect
- does car tries to connect HFP with phone
- does phone tries to connect HFP with car
I experience that I can not connect multiple profiles at once - and often HFP comes as the 2nd one and fails because bluetooth is buzy connecting the A2DP. At the end A2DP is only working.