Why doesn't my laptop turn on anymore?

My laptop hasn't turned on for a few hours. I closed the laptop for a moment and now it doesn't turn on or doesn't respond at all. Tried everything but nothing worked. If someone can help me it would be great because I need the laptop for video conferences tomorrow

Thanks in advance.

Is it fully charged? You might charge it for an hour or so and then try again. Unfortunately, I don't know my way around, but I can wait and load for a moment, I don't think it hurts

Switch off correctly (hold down the power button until nothing lights up or remove the battery for a short time)
Charge for half an hour
Try again to switch on

In most cases this procedure is sufficient.

I just charged it until just now

Unfortunately it didn't work. I've already tried it

Then visit a technician or something. It just won't go to the conference tomorrow. If you have teams, you can also join via mobile phone

What happens when you switch on?
Are LEDs lit? Do you get a Windows logo? Error message?

Yes, nothing at all he stays that way. Just this one light