sometimes, I can see the icon of camera, but once I press it, it will say 'can not connect to camera' or 'the app is not installed' and then the icon of camera will disappear, while sometimes, I just can not see the icon of camera.
I tried to reboot, no luck, tried to install other camera, such as Google camera, still no luck.
But I install back to Sultan's 4.4.2 ROM, the camera works well.
Does anybody meet such issue before? How to fix it? Thanks in advance.