MBP mid2012 weird keyboard issue - keys yuio come and go
So this is pretty weird. The yuio keys of my Macbook Pro non-retina mid2012 keyboard sometimes become un-reactive. I found a way to reactivate them., which sometimes works, sometimes not... If I press t and y repeatedly for 10-30 times the keys will work for a while.
I have seen several discussion threads with similar issues and I wonder if there is some cure, as it does not seem to be entirely hardware-related... However, in Bootcamp or in the filevault pre-boot login screen I get the same issue.
I tried cleaning the logic board connector cable. I cannot remember spilling any liquid into the Mac.
Is this a good question?