Xperia 1 V - low volume via USB-C headphones connection

[Damian87]

Hello, recently I have bought a headphones B&W PX7 S2. There is a possibility to listen via APTX Adaptive or via cable, USB-C direct connection. When I use a cable conection throught USB-C cable, sound volume is really low, actually twice lower than over bluetooth. Is there any fix already for that ?

Sony Xperia 1 V

B&W PX7 S2

[HannahEd01]

Hey Damian87, before I suggest anything else, the headphones' USB is for charging, not headphones, so it won't be guaranteed that it will work. 

Having said that, try a software repair, it's described here: 

https://www.sony.co.uk/electronics/support/mobile-phones-tablets-mobile-phones/xperia-1-iii/articles...

[Damian87]

B&W px 7 s2 and px8 series headphones using usb-c for music listening in order to transmit lossless quality of audio. Once you are listening via usb-c, you are not loosing data packages as in case of Bluetooth.