Critical connection issues to BP50 from Android 15 devices

I own to Android smartphones: Xiaomi 13 and Sony Xperia 1 VI.

For the 1st time, the Xiaomi 13 connects well to the BP50. Then, if I deconnect the phone and then try to reconnect, it doesn’t work well: it connects, disconnects, connects, disconnects indefinitely… I have to reboot the phone to get a stable connection.

Regarding the Xperia 1 VI, whatever I do, it it connects, disconnects, indefinitely…

My phones are up to date and my BP50 has the latest firmware (Android 15).

Is my BP50 defective? Seems like a software issue?
Any tips?
Thanks for the help.

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[Update] list of bluetooth audio receivers tested by me that work/don’t work on latest versions of Android 15:

  • Dacia Sandero Stepway 2 - bluetooth ?.? (2017): OK
  • 1Mii B06HD - bluetooth 5.1 (2019): OK
  • 1Mii B06HD+ - bluetooth 5.1 (2022): not OK
  • Fiio BTR7 - bluetooth 5.1 (2022): OK
  • Fiio BR13 - bluetooth 5.1 (2023): OK
  • Arylic BP50 - bluetooth 5.2 (2024): not OK in RX mode

I suspect that the issue is not only due to Android 15 but also to some manufacturers that don’t respect some bluetooth specifications… (to be investigated)