Broke "sticker" in the butterfly keyboard while cleaning. What is it?
The J key stopped working on my MacBook pro as it did many times in the past. I initially set the MacBook on its side and sprayed the keyboard with compressed air. No dice.
I took off the keycap by inserting a bit of plastic at the top and being careful not to break it. I once again set the MacBook on its side and started spraying air.
I probably got a bit too eager with it, because this little bit of what looks like a black sticker came flying off.
I picked up the sticker and haphazardly put it back where it was. The key still skips a few beats, but it works better than before. However I'd like to understand whether I should be worried about this broken bit.
What is this thing? Is it critical to the function of the keyboard?
Questa è una buona domanda?