Xperia 5 IV microphone sensitivity too low

[falkster]

Hi All,

I have checked the forum already but could not find a solution that actually works, hence the new post.

The issue:

when I am on a call with anyone, they only hear me very quietly and if I have the phone on speaker this only gets worse. With my old phone i could have the phone on the table on speaker mode and everyone could hear me clearly. With the Xperia this does not work at all, to the point I am considering going back to my old phone...

Is there any way to adjust the microphone sensitivity?? Thanks for any input.

[SkyNet404]

If that's a known issue you would've seen a lot complaining about it since it's something huge and easily noticed. Which leads me to believe that your device might be faulty sadly. 
But other than the regular stuff, have you tried a factory reset or software repair? 
Did you also try to test the mic in Xperia tests?