Hello! I have an asus vivobook x540ub and my power on/off button doesn't work. I spilled some cola on the keyboard(around WASD) and so i open my laptop to clean it. I did some research and found that WD-40 is non conductive and it's really good for cleaning. I wasn't sure at first but gave it a try and it worked really good. Nothing is sticky anymore, but my power button stopped working even tho i barely touched that area. I don't think the WD did something because everything else works just fine. I found an way to power it on but it's complicated so if the laptop turns off it's a pain in the back so I really want to fix it. I though of changing the whole keyboard, but I'm not 100% sure that it will help. And even there there's another problem. I can't find a keyboard fr the UB series, but can find for other x540 series like x540l. I think it should work but I'm not sure.