Bluetooth stops working

[PeterWallman]

Tha last couple of weeks I have noticed that my Xperia XZ Premiums Bluetooth driver stops working. The symptoms is that nothing can pair with the phone and if I try to turn off and on Bluetooth it doesn't work. When I slide the button to position "on" in Bluetooth settings it just turns grey and if I refresh the page it's back on "off".

I can solve the problem with a restart but now the problem is every day and sometimes two times per day. 

My Bluetooth behavior has changed a bit since I always have Bluetooth on for syncing with training watch from Garmin. I also use a headset from Jabra several times a day. 

[stefan_c]

Hi !

I have the same problem here, but with Polar systems. (Worked perfectly with 7.1)

/Stefan

[admad]

Same issues here, for some reason bluetooth stops working after some time (usually each 1-2 days), and cannot be turned on. Only restarting the phone will allow the bluetooth to be turned on. Extremely annoying.

[MXperia]

Same problem here!

I use Bluetooth headset in work, in-car Bluetooth and I use a Mk Bradshaw SmartWatch daily, all of which randomly disconnect on a daily basis.

It keeps requiring device restart as the Bluetooth on/off button is unresponsive. I'm looking for trouble shooting information but can't find any.

I have also tried force stopping Bluetooth through application management in settings but not helping either...

I think it's since the Android Oreo update... 

[najodleglejszy]

@MXperia try going to Settings > System > About phone, and tapping Build number 7 times, then going to Settings > System > Developer options > Bluetooth AVRCP Version and changing it to 1.5 or 1.4, and see if it fixes the connection with your car and watch.

[NN11]

Same here.  

All my xperia phones periodically lose connection to paired devices. And only resume it after rebooting or enabling/disabling airplane mode..........

[PeterWallman]

@najodleglejszy: I followed your instructions and have now tried both 1.4 and 1.5. Despite that 1.4 is marked as default I experienced the same problem there. Now I have tried 1.5 for a couple of days and that seems to work. 

How do we get this solved "for real" and not just using this workaround? Can your register some bug for future releases?

[stefan_c]

I did, tested all of them. Same problem.

[PeterWallman]

I agree. When I used 1.4 or 1.5 the problem was less frequent but after some day it came back.

Recieved a android update yesterday from Sony so now I'm testing with 1.6 again. 

[Richard54]

Exactly the same problem here. Loses connectivity daily and sometimes more often. Means constantly having to restart the phone. Extremely frustrating.