Dell Inspiron N4050 Black Screen w/ movable Mouse Cursor before Login

How do I fix black screen with movable mouse cursor before login? Yesterday I was playing my Laptop without it's battery but the charger was connected when I was playing it was so hot for like 2 Hours, then the next day I opened my laptop and before the profiles section my screen was all black, the only thing that was there was the movable mouse cursor. I already tried Ctr+Alt+Del, Sticky Keys, Safe Mode, Start Up Repair etc. I really need some Ideas to fix my laptop ;-;