Unstable bluetooth connection with headset

[AlexperiaXZP]

Hello, I have a Sony Xperia XZ Premium and is presenting constant problems in the bluetooth connection with different brands of headphones. It disconnects without any reason and reconnects automatically, up to three times continuous, then only disconnects and does not reconnect until the bluetooth turns off and turns on again.
This problem takes at least 2 months and I have not been able to give it a solution, I have provided different Bluetooth headsets of different brands and the error persists in the same way.
I have version 47.1.A.12.75

[Shanti016]

If you have LDAC Bluetooth headphone, you can turn on LDAC mode.

[Webcloud]

Hi, same problem here with XZ Premium and Plantronics 5200 earphone.

I changed earphone but problem is still there. 

Have you found a solution?

Thank you, 

Andrea

[WaterGolder]

Need to upgrade your mobile phone Bluetooth software

[Webcloud]

How have I to upgrade mobile phone Bluetooth software?

I installed all the updates, problem is still there.

[Strampke]

@Webcloud

Try clearing old settings.

Settings-> apps&notifications->tap see all apps->tap 3 dots-> tap show system->scroll down to bluetooth-> tap storage and clear cache & data

Or:

settings->system->advanced->reset options-> reset network settings

This does reset Wi-Fi, Mobile data and Bluetooth.

You're shure to have a clean and uncluttered start.