Chosen Solution
I remember the iPhone 4 having a problem with the home button not working. A simple fix for this problem at the time was pouring a little bit of isopropyl alcohol on the home button and pressing it multiple times. This dislodged the speck of dust or whatever stopped it from working. So my question is, has anyone tried this for a Macbook Pro 2016-2019 that had the problem of a speck of dust getting in and stopping keys from working? Could I use a syringe to squirt a tiny bit of isopropyl alcohol just under the nonfunctional key? Would it help? At least it seems to me that it should be safe, as isopropyl alcohol is non-conductive and evaporates quickly. What I don’t know, and haven’t found any mention of on internet forums, is whether or not isopropyl alcohol could dislodge the speck of dust safely.
The iPhone Home button is a single button so the mess is pushed out into areas that won’t get in the way (grain of sand) Here we have neighboring buttons! So you push the debris under the other buttons! This was the same idea Apple had to clear the issue using can’ed air which rarely fixed anything! Some systems it was so bad Apple swapped out the system! It was (still) so bad Apple had to replace peoples keyboards! MacBook keyboard issues: MacBook Pro keyboard not working Time is ticking! Your window is closing very soon! You need to get to an Apple Store or Apple authorized service center to get your keyboard fixed
