Chosen Solution

Some debris got inside the key and all 3 parts broke and came out. How do I fix this issue. If you give an answer provide video or pictures.

Looks like this site has the entire keyboard assembly ($49.99 US)… https://www.chromebookparts.com/category… At bottom of page they have a link to a guide for disassembly/reassembly. Looks like you can stop at step 11 there and then reverse steps to install new keyboard.