sir though there is no damage is done from myside they blaiming me for the damage of the key board.initialy i made an complain to the leenovo seervice staattion ,at bhubaneswar about the display problem and they replaced mother board of my laptop.after that i am facing problem with my key board.though there is warrenty they are demanding bribe.though i am unable to give them money ,the engineer cancelled my case by saying it is a liquide damage and can not be recover through warrenty