Hi Xalp
I've not noticed any of the symptoms you've mentioned, but...
I have a 2010 V70 and recently the display was showing that my mobile phone was connected, I could use the dash controls to scroll through my phone book and recent calls and I could initiate a call but the audio wasn't connecting through.
I stopped the Bluetooth on my phone (Android) and restarted Bluetooth. The phone re-connected to the car and audio was also connecting through OK.
Another strange thing that happened recently (before the Christmas lockdown).
I was with a friend who was using a drone controlled from his mobile phone. I had the NHS app on my phone with the Bluetooth option enabled. When I moved within Bluetooth range of his phone the drone started behaving erratically. When I moved further away the drone behaved normally.
Also when I have the Bluetooth option enabled in the NHS app my fitbit struggles to communicate with my phone. The NHS app seems quite greedy with Bluetooth bandwidth.
I don't know if this has any relationship to your problem, but it might be something you could experiment with to find out.
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