I can no longer reliable use my car's handsfree calling after the phone updated itself to Android 13.
My phone is a Sony Xperia 10 IV. The car is a recent Peugeot (model year 2021). Similar infotainment systems exists in cars from Citroën and Opel/Vauxhall.
The exact problem: There's no connectivity or pairing problem, but calls cannot be initiated from the infotainment system, nor can I hear the other person, nor can I receive a call. All these things worked consistently and without issues when the phone was on Android 12.
I've tried:
Deleting pairing information ("forget") at both ends and re-pairing.
Deleting all bluetooth information in the phone (cache, app data, etc) .. from the Settings.
Re-booting my phone
Factory reset of the car's infotainment system
Updated the car's infotainment system to latest version
None of this works.
What works is this: I let the phone connect to the infotainment system. This happens, of course, automatically shortly after I've started the car. As it should. But if I then turn off bluetooth on the phone and then turn it on again (effectively forcing the phone to re-connect), then everything works again. But of course, that is not sustainable solution: I cannot do that every time I start a trip.
Because of the workaround, I'm suspecting there's some kind of timing issue. Which wasn't there in Android 12.
I've found similar reports from other users. However, none with a real solution. Other smartphones can use my car's infotainment system via Bluetooth without problems. Which means I'm not getting help from car dealer.
Any ideas?
