@StaceyCornelius@zeroes.ca the gunk I'm referring to would be on the inside, from dried juice, coffee, preventing electrical contact; no external cleaning can get to it.
ok, then all you gotta do is get a keyboard and hop to it - the ifix instructions say there's 38 steps one way, you gotta do that twice (disassemble/assemble), sooo...
also, just took a look at the instructions, they are for an early A1278 model and yours is different, so a lot of stuff will be different than pictured.
https://www.ifixit.com/Guide/MacBook+Unibody+Model+A1278+Keyboard+Replacement/153661
not sure this should be your *first* interaction with DIY repair? maybe get with one of them repair cafe things if you got that locally and seek out someone who has done that sorta stuff before?
seeking out commercial solutions, like a repair shop that does this for a profit would be vastly more expensive than the device's worth.
anyhoo, if you get around to it, open the bottom cover, take a pic and send it when you can.
