Well if it crashed you can only replace it as far as I know.
Before you buy anything though you can open the case and check whether the power and data cables are secured in place.
***Open the case ONLY if you know what you are doing. If not ask someone who does and have in mind that by opening the laptop ANY guarantee or insurance by the manufacturer or the seller is
broken and not valid.
Don't blame me for anything you do wrong
(but it's a pretty easy task)