If the PC detects any one these parts has been replaced, it will refuse to function until the Apple Service Toolkit 2 System Configuration suite has been run. This applies exclusively to new MacBook Pro and iMac Pro systems, which feature the new Apple T2 security chip.
As Motherboard reports, this nasty new policy will make it impossible to do home repairs, or to take your Mac to an independent repair company. The only option will be to take it to an authorized service provider, or to buy a new device.
The AST 2 System Configuration suite is a diagnostic software that Apple uses to ensure that the computer is functioning properly. It includes the Mac Resource Inspector, which does a “quick health check of hardware and software,” as well as tools that check the system’s memory, display, power adapters, cooling system, and other aspects of the computer. It functions only if connected to Apple’s Global Service Exchange (GSX), a Cloud-based server that Apple uses to handle repairs and service. It requires a login from Apple to access.