Asus UX302LA power button not working

Hi,

This has been happening to me twice already, the power button won't light up when I press it. I've went to computer shops and all they said was something was just disconnected that's why it won't power on and my battery is ok. It got fixed, they say they secured it. But it is happening again.

I'd bring it again but the shop is 8 hours commute from where I live. It happened twice already and same issue. So I want to resolve this myself. I've opened up the laptop but I just dont know where the keyboard connector is for my laptop UX302LA. Can anyone please help me?