Wer hatte die gleiche Frage?

I do not know how this could’ve happened. I put my laptop down yesterday near my bed and door was closed so no pets or anyone else has been near it. I wake up today and when I click the power button the LED’s light up on my keyboard then shut off and nothing works. I have noticed that the power LED flashes 3 times and while the PC is trying to boot it is detecting power and using the drive. But then shuts off with no response (doesn’t even load to the median boot screen). I’m a bit confused and need help. I’ve tried plugging it in tried changing the seating on the charger and even leaving it disconnected for a while with no boot. I’ve got warranty and thinking worst case scenario that the motherboard is fried. But is there any other checks I can do? (Battery is internal so no chance of taking it out and doing anything internally will just void my warranty)