[Q] how to Change mt6589 front camera driver ? topic

Hi...

I have a phone with MT6589 chip and android 4.2.1
I have a question...
How can I find and Replace the front camera driver?
(I install a 4.4.2 custom ROM on my phone ... everything is good except front camera(doesn't work) and this problem related to drivers)

please help me ! ...:)