Ringtone volume locked at 0

[p_vestjens]

Somehow the volume of my Z3C got locked at 0. When I press the volume up button on the side, the slider is displayed but the volume is not increased. When I press the button to show all volume sliders, the Ringtone slider is grayed out, the other two not. Also the slider for Ringtone volume in Setting->Sound and notification is grayed out. So now I need to regularly check if messages have come in and phone calls are probably missed. How to resolve this?

The phone was updated to Android 5.1.1 over the weekend. May be that has something to do with it?

Best regards,

Patrick.

[Bear1]

I had the same problem.  To fix it I simply increased the volume with my volume button that's physically attached to your phone. Try it now, because if you increase the volume on music the volume 🎶 setting will increase.  Here,  the 🔔 volume will increase,  which is your ringtone. Now, once you've increased it,  you can look at settings and see that the slider is where you put it to. 

[AdiPutra]

Got the same problem, for me its solved by launch diagnostic program, setting-about phone-diagnostics, test ear speaker..and done.

[TripSin]

Had this issue. Turns out I had do not disturb enabled. Swipe down from top twice, then had to turn off do not disturb mode.