I recently upgraded to a new laptop and have decided to sell my old one, an Asus K53U-RBR5. The bottom casing was cracked so I bought a replacement and while I was able to reconnect the motherboard and the video card, I can't get the screen itself to come back on.The hinges will not fit back into the case. I checked the old casing to see if something was missing from the new one, and there isn't. Is there some guide or help for this? My searches have only lead to how to replace the LCD screen itself.