Turning laptop on without the on switch on the keyboard
I am trying to take a motherboard of an old laptop of mine, acer swift 1, and I only want the motherboard. As if now you can only turn the laptop on using the on button on the keyboard which is connected through a ribbon cable. I tried to measure on which pins the on switch lies by pressing it and using a circuit with an LED to see if the circuit gets completed. (My first method was with a multimeter but none of the pins were connected there, as I think because it has to high of a threshold) . Between pin 14 and 15 and also 14 and 16 there was a light so something went through although the light for 14 and 16 was weaker. So I thought that I could now shorten pin 14,15 and 14,16 but it didn’t start.
Now I need your help to start the pc without the keyboard as I want to use it for a very tight project. It would even be enough if it wakes as soon as i connect it to power.