Replacing the internal keyboard is not an easy task at all, there are about 60 screws and a dozen connectors you need to remove to get to it. ASUS did a horrible job here, with such a vulnerable hard to replace keyboard which is unfortunate because it’s an amazing laptop. The power button should always be separate from the keyboard. Normally I would have popped the ssd in another computer but these are dual raid 0 ssd’s, not an easy data recovery task.
Asus Zenbooks have a horrible horrible design flaw. The power button is part of the keyboard, so if your keyboard stops working, you can’t turn on the laptop. Specifically I have the ux301-dh71t, and a single drop of water fell on my “up” key. Due to the keyboard not being water resistant this drop of water eventually corroded the keyboard circuitry, killed a bunch of keys around it and eventually the power key too. There is no other way I found to turn on the laptop, other than opening the back cover and short circuiting 2 pins on the keyboard connector (wide blue ribbon). In order for this to work you need to have the notebook partially open otherwise it won’t turn on. Be very careful not to short circuit other stuff. I was able to get it to turn on by short circuiting the 1st pin and the 4th 5th or 6th (not sure exactly since they are so small). The first pin would be the one closer to the power button side. I then connected a usb keyboard and proceeded to download my data.