In the case of an unofficial repair device will not work.
According to the new Apple rules, in order to repair the 2018 MacBook Pro and iMacPro models, it is necessary to launch a special diagnostic program available only to service centers cooperating with companies. Because of this, it will not be possible to repair the equipment from organizations that have not entered into a contract with Apple. This publication reported Motherboard and MacRumors, with reference to the internal document Apple.
According to the document, Apple will block the repair of all key components of the device. In the case of MacBooks, this is the display, motherboard, Touch ID, keyboard, battery, trackpad and speakers. And in iMac Pro it is now impossible to repair unofficially the motherboard and SSD-drive.
After repairing any of these components, you need to start the Apple Service Toolkit 2 program, which can only be accessed by Apple Store employees and authorized service centers. If the program is not launched at the end of the repair, the user will receive an idle system and an “unfinished repair”.
As noted by journalists, because of this, independent service centers will not be able to repair many of the components of iMac Pro and MacBook Pro 2018. There is another problem: when the devices become outdated and the official components for them are no longer made, they will have nowhere to repair the equipment. Publications asked for comments at Apple, but the company could not promptly respond to requests.
According to MacRumors, the limitations of the repair were made possible by the T2 security chip, which is built into the 2018 iMac Pro and MacBook Pro. It combines several components that existed separately, including a system management controller, an image processor, and an audio controller and SSD. T2 also contains the Secure Enclave security co-processor, which is responsible for secure boot, memory encryption and Touch ID authorization.