Phone [Q] KitKat I9500 mic problem on device ?

Hi ,
I have problem ,well I put in my device I9500XXUFNB3_I9500SERFNB3_I9500XXUFNA6_HOME.tar... and lost MIC function
on my GT-I9500 test with bluetooth and device work nice , after that change ROM to 4.2.2. for KSA I9500XXUFNB4_I9500OJVFNB2_I9500XXUFNA6_HOME.tar

and now I have OMEGA V19 but I still have same problem with mic when I call someone gain is so low , very very low

Some solution for this problem ??

Thanks in advance,

Z .