[gxx]

I bought a 13 inch Macbook Pro in 2017 and within six months of normal use the spacebar and other other key were intermittent. I was fortunately able to get it fixed under warranty.

However I've been using since then with no need for servicing and the keys are at this moment perfect. Various keys have become intermittent since then but I found a trick that so far has fixed it every time.

The key mechanism seems to be VERY robust and can take a lot of pounding. Usually the particles jamming the mechanism (e.g. food crumbs) can be broken up by repeatedly banging hard on the offending key.

I've had keys that were intermittent or even not come all the way up and this has always fixed them to be literally as good as new. It seems that once the particles are broken small enough they either remain in place but are harmless or maybe they are small enough to fall out by themselves.

[redler]

> The key mechanism seems to be VERY robust and can take a lot of pounding. Usually the particles jamming the mechanism (e.g. food crumbs) can be broken up by repeatedly banging hard on the offending key.

I've done something similar by holding the base of an electric toothbrush against a misbehaving key that couldn't be cleared by some other technique. The high-frequency vibrations seem to do a decent job of breaking up or dislodging whatever's stuck.

[climb_stealth]

This has worked for me as well. Whenever keys got stuck I could press them quite hard and seemingly crunch whatever is causing the issue. For example the tab key would only react intermittently. Press it, and almost massage it with lots of force and it works fine again.