Probably a cable got tilted.
Confirm that it's your screen using hdmi to connect it to an external monitor/tv.
If it is your screen probably it's the backlight.
You need to open your laptop find the cable and reconnect it.
Probably a cable got tilted.
Confirm that it's your screen using hdmi to connect it to an external monitor/tv.
If it is your screen probably it's the backlight.
You need to open your laptop find the cable and reconnect it.