How do I unmute my Microsoft Lumia 640, Windows 10?

[Windows Central Question]

How to unmute Microsoft Lumia 640, windows 10?

I have a brand new Microsoft Lumia 640 - just 3 weeks old. I don't know how it happened but an hour ago, when answering a phone call, the other side could not hear me ... turned out that I was muted. So far, I could not unmute - nothing works. Does anybody have the answer how to unmute my phone? I switched it off hoping that would do the trick but no - didn't work.

 

[Guytronic]

Re: How to unmute Microsoft Lumia 640, windows 10?

Is the call volume turned all the way down?

 

[squire777]

Did you make sure that you are not paired to a bluetooth device?

Try a soft reset (hold down, at the same time the power + volume down button for about 10 seconds)