Default Xperia Z1 Primary faulty MIC force to use SEcondary

Hi

I wonder it is any build.prop line that can be change to force phone use SECONDARY MIC this one -->
https://www.google.se/search?q=xperi...ml%3B500%3B500

My Primary mic have some issues and is there any way to force phone uses secondary for calls?

When i was on KK STOCK ROM calls and video recording has problems to record voice. Now i am on CM11 and mine Video Recording problem
is wanished because now phone uses secondary mic i dont know why but it must be some kind of kernel or ROM tweak. But calls still uses Primary MIC.

It must be some kind of hack that forces phone use seconday microphone even for calls?
Just trying to help if i can...