The disassembly of this tutorial is not a laptop, but a component of the notebook: the keyboard.

This model first appeared on the 2015 MacBook, and the butterfly mechanism replaced the scissors connector used for registration when the button was pressed. It allows Apple to reduce the thickness of the keyboard by 40%.

However, for many users, the problem becomes more and more obvious. This new keyboard is susceptible to contamination. Disassembly experts, including iFixit, have confirmed this fear: a single dust or sand can get caught in a butterfly-type keyboard, causing certain related functions to stop or repeat uncontrollably, or disable the keyboard altogether.

The situation is getting worse. The keyboard is in a wider design, and other slender elements and glue masses make it difficult to replace the faulty key. This applies to a faulty laptop being taken to the Genius Bar or an independent repair shop. Usually, the only solution is to replace the entire “top” component - laptop, trackpad, battery, etc.

In June of last year, Apple publicly acknowledged the problem and extended the warranty period of its sold laptops, including the Butterfly Keyboard - nine of the high-end MacBook and Macbook Pro models. Anyone who has been accused of keyboard repairs will receive a refund.

The company also said it has improved the internal mechanics of its 2018 MacBook Pro keyboard. So, what is the effect?

In the latest 13-inch MacBook Pro, the iFixit disassembly of the keyboard found that Apple has made the keycap thinner and therefore easier to remove (1.25mm vs. 1.5mm). The company has also redesigned the space mechanism because it is particularly vulnerable.

However, the main progress comes from a critical moment. Each butterfly is now surrounded by a layer of silicone in the form of a single die slice between the cap and the joint. In a pending patent, Apple describes it as “a protective structure attached to a keycap that is operable to direct contaminants away from the moving mechanism.”

When iFixit dig deep into the design of the new component, it again encountered a lot of glue and rivets: “In addition to the improved keycap, this keyboard design still lacks maintainability. The large number of disassembly required makes the replacement failed keyboard become Very unrealistic.

In a leaked document and related presentations by internal maintenance staff and official partners, Apple warned that hardware products running T2 companion chips - the most recent MacBook Pro and iMac Pros - have not been completed by running official diagnostic tools Repairs will be made of bricks.

Apple’s silicon designers have been integrating multiple independent components into coprocessors such as T2. T2 includes security features, primarily Secure Enclave, for secure boot and encrypted storage.

One reason many people buy Apple products is their durability. What if Apple decides to no longer support these models within a few years? Or, if the reason does have security issues, does the company now support T2 machines forever?

Apple can do ring keyboard repairs – Apple doesn’t know if there is a problem with the keyboard. Interestingly, the patent on how to prevent contaminants from entering the keyboard was submitted three months before the company officially recognized the keyboard issue.