uh, actually I was just following the steps and I wanted to clear the laptop bcs why not its sunday...  And I uplugged the ram's, cleaned them and plugged them again. Tried to start the laptop and it works now. So it was not the power button. Thank you.
I unplugged my laptop while it still had 90% battery power it turned down and now I can't start the laptop. Power button is a bit strange it doesn't give you the sense of you pressed it correctly. It is like some dust or a particle stuck underneath it. I don't know if it is a problem by only unassembling the laptop and cleaning it or is there more severe damage. I'd appreciate any help since dell support only leds me to a broken website...
Power button suddenly stopped working on my G15 5515 RE.