Laptop key (right arrow) not working after spilling coffee Lenovo Y510P

[wall-ed]

I spilt coffee by mistake on my laptop and all the buttons after were ok except the right arrow
I turned it off and dried it, cleaned it well and everything works fine except the right arrow
I removed the button and cleaned around it and its bay and plugged it in again and still not working
although the led below it is still lit.
My laptop is Y510P, does anyone have any idea to help me with?
I am not in warrany anymore..

 

[Laptop_Nerd]

Hi,

Please do try these troubleshooting steps that may help but I would say it's already a hardware problem.
- Start by uninstalling/reinstalling the keyboard driver.
- Go to Device Manager and uninstall the keyboard driver then reboot your laptop. It will reinstall the driver automatically.
- Next is to open Onscreen keyboard and see if that key would work or not because if it does that means it's a hardware problem.
- Also try an external USB keyboard and see if the same problem will persist because if it will not happen it's really confirmed.