Thanks every developer in xda forum to let all of technology enthusiasts find his loves ROMs.
I have flashed OMNI 5.1.1 (omni-5.1.1-20151008-mx4pro-FINAL) on my new MX4 pro via TWRP 220.127.116.11.
All is good, such open Gapps, supersu 2.46, busybox & terminal, except phone have no voice & sound.
Even I have rebooted and cleared cache more times, every one call me use difference mobile ISPs still can't hear my sound and I can't hear his sound.
Did I lost some step of flash ROMs processes? Any one have encountered this bug and knows how to solve?
Any comments are highly appreciated.