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Hi, can you help me with the non-functioning down key on my MacBook Air 2017? I looked here, and it looks like I’m on the right track: How to replace the Arrow keys (bottom)) All the parts remain: The black cover, The white mechanism and The white nipple I tried using my screwdriver to push on the metal circle underneath where the nipple would go to see if it was a problem with my keyboard. When I press on that, the down key functions. However, when I reassemble the whole key, it does not. What do I need to do to fix this? Am I assembling it wrong? I followed this video: https://www.youtube.com/watch?v=E8ncRaFM… It looks like what I did is right, but the nipple slides all over the place, and even I use my screwdriver to press it to press the button underneath, my cursor does not go down. Do I need to buy an install a new nipple? It seems like the nipples work as springs, could it have lost its “springiness”? Or do I need to glue the nipple in place so it doesn’t slide around. I’m afraid if I do that and the down key doesn’t work though, I’ll be in trouble! For example, I see in this listing to buy a listing a suggestion to glue: https://www.ebay.com/itm/Rubber-Key-Plun… Please help! Thank you.
Refer to this web page TheBookYard - KeyCap parts MacBook Air click on the image that looks like your keyboard to then drill down to the part’s you need. I would get a new KeyCap, Scissor Mech and Silicone Dome.
