Secondary Microphone problem c3

[Ab63]

Secondary Microphone of my Xperia c3 dual is not working during call. That means, I am not able to hear anyone's voice without putting on loudspeaker or using earphone. Please help..

[Dadacute]

I'm experiencing the same problem

[Uliwooly]

@Ab63 @Dadacute

settings > about phone > diagnostics > test > test mic