Question Hp Omen 25l not turning on.

[nhomer]

I've checked CPU, RAM, plugged/unplugged all wires, but nothing has worked. I've come to the conclusion I need a new power button, but idk how to replace it. I don't know what to buy, and the screws for most things are on way to tight (to the point some screws have degraded from me trying to undo them). I've looked stuff up, and the names for things are way to confusing and I can't find anything on HPs website for it.

Power pins don't jump start(but they worked for 8 months before it stopped turning on easily for no apparent reason). If anybody can help or offer advice, it'd be greatly appreciated.