My sister used the laptop watching alot of youtube videos and closing the laptop without closing off apps. One day the screen went blank. i gave my co worker to check it for me. He connected it to his screen and it functioned well. He also tried disabling the screen but it seem to be disabling his screen and not my laptop. To him, there was a problem with the screen. I took it upon myself to try some options from online as well as here, because he told me that i need to buy a new screen.
what would you suggest that i carefully do? thanks in advance.