Laptop turns on but screen black. I've tried a few things.

[NoTTaShoT]

I've read around and tried the following:

Alt+F4

removing the battery with the power cord unplugged and holding the power down for 20-30 secs (reset BIOS?) then put the power cord back in and tried to turn it on.

Just turning it off and on a few times(I guess it could be stuck in sleed mode?)

I tried to light up the screen with a flashlight to see if the LED went out but screen was still black.

It's a toshiba satellite sli1

Thoughts on other things I can try?

(the issue happened...after my cat puked on the laptop(keyboard part)

 

[Tmagic650]

"(the issue happened...after my cat puked on the laptop(keyboard part)"...

If there is dried cat vomit near one of the top hinges, there's a small micro switch that senses that the top cover is closed. If this switch is damaged, it will give you the black LCD screen