microphone issue

[srikanthsri]

my phone "SONY XPERIA M4 AQUA DUAL"microphone not working properly,when anyone call to me my voice not hearing to them and when on loudspeaker i can able to talk to them.plzzzz give me any suggestions

[MarlonUk1]

1.) test mic while in safe mode

2) run Xperia Diagnostics. settings>about phone