My Smartphone was relased in two versions but only one diffrence between them is a camera (confirmed by technical support). My device has 5 Mpix, second version has 2 Mpix. Now Android 4.4 KitKat for this second version is relased and there are no plans from Manufacturer to prepare update for my device. The question is how i can port camera driver from my JB ROM to KitKat? I have original ROMs (JB) from both devices and original KK from the second one. If solution is not simply please give me link to any tutorials or guides. If its matter the SoC is Broadcom BCM23550.