Contact a Club Nokia Service Point, they will examine the phone and if there is no obviuous cause for the broken hinge, drop damage, chipped case, other scratches etc. that imply the phone has had a hard life then they will probably consider the repair as a warranty job. If there is damage then you will be charged, and quite rightly so, for the repair, if you damaged you car by hitting something you wouldn't expect the maker of the car to pay for it would you?