Black Spot

So I'm a college student and I needed an external monitor to use with my laptop but can't afford one rn. Luckily, I got my friend's permission to use his old laptop's display as that laptop was broken and was not usable anymore. So I carefully removed the display from his laptop successfully...

Hello, I've spotted a dead (black) spot on my screen. I have a brand new Asus, 2 or 3 months... What should I do? I've tried those seisure inducing videos but it didn't do the trick (probably beacuse this really is a dead, not stuck pixel). Is it worth to send it to the repair? Or is there a...