iMac Pro and MacBook Pro 2018 must pass additional diagnostics to Apple after replacing some components
According to internal Apple document that was available to MacRumors, the company is introducing new rules for repair for iMac Pro and MacBook Pro 2018. All that extra chip T2, which controls several components.
In accordance with the document, MacBook Pro 2018 must pass additional diagnostics Apple after screen replacement, motherboard, Touch ID and a Top Case that includes a keyboard, battery, trackpad, and speakers. For iMac Pro, this requirement applies only to repair motherboards and flash memory.
If any of these components will be repaired without diagnostics Apple this will cause an unhealthy system and unfinished repairs.
Diagnosis can be made only at the Apple Store and authorized service centers because they use Apple Service Toolkit. Thus, informal workshops will not be able to repair certain components in the iMac Pro and MacBook Pro 2018.
Moreover, when the iMac Pro and MacBook Pro 2018 fall into the category of “Obsolete and vintage Apple products”, the company will not carry out repairs. Third-party service centers won’t be able to repair them due to restrictions by Apple.
This requirement is a result of the introduction of the T2 chip, which combines several previously separate components such as audio controller, processor, image signal and an SSD controller. It also has a Secure Enclave for secure boot, encrypted storage and authentication via Touch ID.