Chosen Solution
I have macbook pro, mid 2012. The key l (L) does not respond any more. the key o responds when ever it pleases. No liquid on the key board, what so ever. What can I do? Keyboard failure or motherboard failure? everything else works just fine
Most likely just some dirt in the keys switch. Follow this YouTube vid Removing the key caps. Then using a slightly moistened cotton swab (Q-Tip) with isopropyl alcohol clean the mechanism just be careful as you don’t want any of liquid from entering deep into the system here and don’t want to damage anything by snagging anything with the cotton. Lastly… You maybe posting too many LOL’s :-}
I have a similar problem. First my zero 0 stopped working which was annoying and then M stopped working. It wouldn’t type M when I press it but it will hide whatever I was working on.
