Since the Update to Build 52.0.A.3.163 I have some annoying Bluetooth-Issues. Now - at Build 52.0.A.8.14 the problem is still not fixed.
As soon as I start my Car (BMW, HiFI Audio System) Bluetooth autmatically connects with my XZ2.
After a few seconds i can hear the sound stuttering or the Playback speed varies. Really annoying.
I found out that this the problem has to do with the audio codec. After every connect the Codec is auto-set to "AAC".
A little workaround is to change the Bluetooth-Audio-Coded zu "SBC" in the Developer Options. But the annoying thing about this workaround is, that you have to repeat this every time you reconnect. I can't manage it to make the SBC-Codec sticky.
The following steps I have tried so far
* Smartphone Factory Reset (with my pc)
* called sony customer care (they dont know anything)
* completely reset of the BMW
* Tryed all AVRCP-versions in the Dev-settings (1.4 workst best but still stuttering)
* connected other Phones to my cars HiFi (no problems there), to exclude prolems with my car's HiFi
The Problems are also described here:
* https://forum.xda-developers.com/xperia-xz2/help/52-0-3-163-bluetooth-problems-car-t3892571/post78...
* https://www.motor-talk.de/forum/bluetooth-aussetzer-android-und-aac-t6545334.html (german)
* /t5/Xperia-XZ2-Premium/Poor-bluetooth-audio-playback-since-January-52-0-a-3-163-update/td-p/136165...
* /t5/Xperia-XZ3/Bluetooth-AAC-Codec-Buffer-Issue/m-p/1367766#M1527
Does anyone have an idea how I can fix this? Many Xperia devices seem to have this problems..
