Default i9305 camera help

I installed
And cam didnt work.

I installed mx camera and managed to get the front cam working, but i dont want to change roms,

I have herd that flashing stock kernal then using cam then flash stock kernal can fix? but has anyone been threw with with a solution ?

Wold anyone have links to the kernals i need to flash without reinstalling rom?

my cell is..

gt-i9305t 4.3
kernal boeffla 5.4 beta1

I dont know much about this so its a miricle i managed to get this rom working sweet!