Laptop Keyboard Not Working

[choux]

I am trying to help a friend whose laptop keyboard is not working.
(Someone was sick all over it - don't ask.)

The screen keeps turning upside down but they are able to reset that, for a while anyway. There is no response on the basic keypad to any typing.

They have cleaned as much residue as they can, hoovered the keypad, used a hairdryer on it, turned it upside down. Looking at previous answers on here - should they try applying a gentle and conservative amount of WD40 to the keyboard?

Any helpful answer will be much appreciated.

[Daffy6543]

Tell them to take the battery off, open it and leave it upside down on a surface where it is not likely to get knocked, if there are any screw off compartments on the bottom of the laptop they could remove those too, keep the screws and covers safe. Leave it like that for at least 24 hours before reassembling and trying to use it. If that doesn't work they will need to take it to someone qualified to fix it.

[choux]

Thanks Daffy - I will pass that on.

[Sycamore3House]

I have a laptop and the keyboard doesn't work properly. I bought a keyboard with a usb connector and that works. But find out the laptop details and put into ebay you may find a cheap one.