LDAC not working with my SRS-XB20

[minhtrism]

Since i bought this phone with SRS-XB20, every time i connect it with my xz premium, it always indicate this device support LDAC (7.1.1 before update to 8.0).

But now, after 8.0 updated, sometime it show LDAC, sometime it disappear. And now it all gone. I can't figure out why it not working anymore.

Tried in safe mode too but "Wireless playback quality" still grey out while connecting with SRS-XB20, and no indicator for LDAC support device.

I don't want to software repair once more time, waste too much time to setup again

[minhtrism · Accepted solution]

Figured out how to solve this following this help guide: http://helpguide.sony.net/speaker/srs-xb20/v1/en/contents/TP0001270186.html