Samsung Digimax S500 Digital Camera "small wont send receive" Questions

...wont switch on. when i press the power button, the 'camera status lamp' (or so it says in the manual) just flashes but nothing comes on on the screen, as if it was turned off. I've tried changing the ...

...small that one grain of sand can jam the teeth and prevent the lens functioning. So what to do? Taking your camera to the shop is likely to result in the shopkeeper telling you that "the camera is ...