The laptop runs and I can hear it but the screen is black

HI @omarkhaled31918

Connect an external monitor (TV?) to the laptop's HDMI port and check if there a display from the laptop shown on it. Don't forget to press the Fn+F8 keys (both together) to toggle to display output from laptop only, to external monitor only to both on together.

If there is a display seen on the external monitor, switch the display back to the laptop screen and then shine a flashlight at an angle close to the laptop screen and check if you can see any images at all on the screen. They will be very faint if they are there so trying this in a darkened room may help.

If you can see images, then there's a backlight problem with the display. Either a faulty backlight power supply on the motherboard, a faulty video cable/video cable connection between the motherboard and the screen or a faulty screen

If you can't see any images, then it is either, a faulty video cable/video cable connection between the motherboard and the screen or a faulty screen.

If there is no display seen on the external monitor, then either the laptop has started but hasn't passed POST (power on self test) or there's a motherboard problem.

You said "The laptop runs and I can hear it...." did you mean you could hear the Windows welcome sound or any other sounds coming from the laptop's speakers or that you could just hear/feel the fan operating.

Not sure if the BIST test works on your model but try it anyway to check if the display is working or not.

Here's the service manual that may also help if you need to open it up to inspect if the video cable connections are OK etc.