It is a strange thing. Whenever I just want to take a unimportant picture the camera works flawlessly. But somehow the z1's camera knows when I really need a picture fast. And then the camera is stuck or it says it's unavailable. It is really annoying - mostly happens when going out. I'm on latest rockz1 rom. But I feel like I had this problem since day 1 (1, 5years) do some of you feel the same??
