W hen Apple debuted the latest MacBook Pro models, it said that the third-generati butterfly keyboards were simply "quieter." But in a teardown by repair site iFixit new keyboard silice membranes
Since then, an internal document has basically cfirmed the true purpose of those silice key switches in the latest editi. MacBook Pro devices.
The document, which is aimed at Apple repair technicians, was obtained by French tech site MacGenerati . The site has published a screenshot of the relevant passage, indicating that the silice covers are uncovered.
"The keyboard has a membrane under the keycaps to prevent debris from entering the butterfly mechanism, "
If the document is accurate, then it is clear that silice membranes are not just meant to make MacBook keyboards quieter.
Even before this latest repair document, an Apple patent published earlier this year was corroborated by the fact that silice membranes were primarily a dust-proofing mechanism – or, at the very least, the keyboards quieter.
Of course, we're not sure how effective the ingress-proofing mechanism will be. We just do not …
