Why is my s7 muting itself when the screen locks?

[Android Central Question]

I have a Samsung galaxy s7. When the screen locks, my phone mutes itself. Why? It just started doing this about a week ago. It won't let calls or texts thru.

 

[B. Diddy]

Welcome to Android Central! Any power-saving modes turned on, or 3rd party battery-saver apps installed? Does this happen in Safe Mode as well? https://support.t-mobile.com/docs/DOC-28008

 

[dottilenau]

I have a Samsung galaxy s7. When the screen locks, my phone mutes itself. Why? It just started doing this about a week ago. It won't let calls or texts thru.

No I have no battery saving apps on.

 

[dottilenau]

I have a Samsung galaxy s7. When the screen locks, my phone mutes itself. Why? It just started doing this about a week ago. It won't let calls or texts thru.

And it also has the mute icon on in safe mode

 

[B. Diddy]

Does your Volume Up button work at all? If not, or if the volume goes up and then immediately goes down, it may be that the Volume Down button is stuck in a pressed state.

 

[dottilenau]

My volume buttons work just fine.

 

[B. Diddy]

I'm afraid I don't know why that's happening. Is it the Do Not Disturb icon you see?

 

[dottilenau]

I'm afraid I don't know why that's happening. Is it the Do Not Disturb icon you see?

No