Asus X540S power button not working?

Question

Keyboard

On the Asus X540S, the power button does not work, although a day ago everything worked, turned off the computer, and the next day it didn’t turn on, but I figured out the most interesting thing, the computer closed two contacts on the cable connection connector and the computer turned on and the keyboard works completely except for the power button, I can’t understand what it could be, any ideas who came across?

Answer 1

Reset bios.

Answer 2

As an option - a problem with the hall sensor