First of all thanks Jake Lo for the great guide !
I installed following your guide https://osxlatitude.com/index.php?/topic/5641-dell-latitude-e6430-e6230-intel-mavericks/
My system is Dell E6530, i7-3540, HD4000, 1920x1080
My current version is Mavericks 10.9.3, I upgraded from 10.9.2
My problem is that I do not have sound working at all and I am using the latest AppleHDA you provided, Apple HDA provided for 10.9.2 also doesn't work (it didn't for 10.9.2 either)
These are the lines containing AppleHDA from system.log
Jun 15 12:03:06 Cristians-MacBook-Pro.local com.app