Replacing the microphone on the LG G4.

I used to work at a powder coating applicator and the powder got inside and with the simple heat of the phone it probably gelled inside and it is now impossible to remove it by blowing into the little hole under the G4.

So is it possible to remove it to clean or replace it?

When I blow inside I can see that the microphone is still working but if I talk as loud as possible next to the mic it won't take any sound.