Help Xperia z2 hidden menus

[jplamb]

Hi all,

I know that there are hundreds of threads on the hidden menus on Android phones but I can not find one on the Sony.

I am wanting the change the Audio settings as my navigation Volume is really quiet via Bluetooth when I am listening to music, the music goes really quiet but the navigation Volume can only just be heard . I have found posts about people using an audio tuning menu that's hidden where you can change the default system volumes.

Does anyone know where this is on the z2?

 

[biancoceleste]

I only know of the volume control found in settings>sound>volumes.