i install the healthcheck it tells "open" and i removed my paper which i put to make lence to be opened always. OH! the camera works again dramatically! and healthcheck shows correctly open and closed too. well i dont know how it happened. but i can confirm that it was not working before, but worked when i put a paper on it. ( i was using paper since i started the thread) BTW i will update when problem comes back. CHEERS!