Dell XPS 15Z Doesn't Always Turn On When I Click The Power Button

Dec 24, 2018
2
0
10
I have this Dell XPS 15Z laptop that doesn't always come up when I click the power button, no matter how hard or soft I press it, it just comes up in its own time. Sometimes it comes up once other times, I just keep pressing and pressing then it comes up + the laptop is out of warranty.
Any recommendation please?
 
Dec 24, 2018
2
0
10

I don't think that's the problem cos I tried another one and the problem still persisted.
thanks though.