Hello. I wanted to add more RAM to my laptop but i have problem with removing base cover. In manual there is written that i have to remove optic drive first. I removed all the screws but i cant remove it anyway. Do you know if i can remove base cover without removing base cover? Or there is any other way of removing optic drive? It seems so simple in youtube tutorials videos but unfortunately it is not so simple in reality. When i pull thorugh the plastic part it disassembles with main part. I dont know how to pull it. It seems like something is blocking it.