hi i used a screwdriver with magnetic tip to lift the screw out from the motherboard. it fell down when i was doing unscrewing something else but i touched the inside motherboard and some metal while doing it. i know it was careless but now when i try to boot up computer it doesn't switch on. the motherboard power light in red. i tried removing the battery and reseting the bios but this hasn't solved the problem. did i short circuit something? how can i make it work again.?any help is appreciated