My optical sensor(then one that know if the cam slide is open or close) is not working any more, there is an option to cancel the sensor, every time i wont to take a picture i need to remove the back panel. - it's not the magnet, the ssd is still working, and when i return the back panel the camera software is close. - when i enter in the xterm "dmesg" i don't get any message about the cam_shutter. plz help me.