title: Unity plugin android native camera
body: <p>I wrote a android plugin for processing camera preview and turn the flash on, but then I found out that for some inexplicable reason plugin does not work properly on some smartphones. That is not the flash is activated and not called handler preview. 
  Even on different smartphones from one version of Android (4.1.3) plugin behaves differently..
  what could be the causes of bug? where do dig? 
  Please help :(</p>