I assume you're able to access your fone using FAR manager? If so, you should be able to see
(1) FS and FLASH, right?
(2) Using your mouse, double-left click on FS
(3) Find ifs, double left click then find settings, double left click on that
and lastly find camera and you should see camera0.dat
(4) replace this with the one that you downloaded on the pc then just go up
the directory of the phone til you see a message to "close cfs loader". Choose yes and restart your phone.