also, no need to send a PM. you could've stated that here.
By opening up the laptop, I assume you mean to say you took a screw driver to it and took it apart?
If so, there would've been a sticker covering up one of the screws that when removed, can't be proper put back on and the removal of this sticker voids warranty service because as far as they are concerned, you opened it up and went inside, and it not working could be due to you messing with something you shouldn't have.