Repairing an Apple computer is increasingly difficult. An internal Apple document shows that the latest Mac computers released, iMac Pro and MacBook Pro from 2018 they must pass the Apple diagnostic, after carrying out certain repairs.
It seems that the origin of this action required in the equipment is caused by the structure of the T2 chip found in such computers. Remember that one of their functions is the comprehensive security of the equipment. Therefore, an intervention external to Apple makes the system interpret it as an intrusion, acting accordingly.
And the consequence is that the team can be rendered useless if we do not carry out the Apple diagnosis after the repair of certain parts. The repairs included within this protocol according to Apple's internal document are: the repairs of the screen and components related to it. The motherboard, el touch ID and the upper case including the keyboard, battery, trackpad, and speakers. That is, practically any part of the team.
It seems that the elements of the iMac Pro are limited to the motherboard and Flash storage. If you take the equipment for repair to a store other than an Apple Store, even if it is an authorized dealer, By not having Apple's diagnostic program, the Mac may be rendered useless. This software is only available to Apple. It is unknown if Apple is considering an alternative solution, since many Apple users are many miles from the nearest Apple Store.
If Apple is required to carry out warranty equipment repairs, it must have an allowance for additional expenses incurred in moving equipment from the customer's home to the Apple Store and returning it. Also, when there is no alternative from Apple, when these teams become obsolete, we will not be able to repair them at authorized dealers.
