The problem, as I see it, with having a method to 'pair' and 'unpair' components right now... is that I don't think Apple is really doing anything too special t

The problem, as I see it, with having a method to 'pair' and 'unpair' components right now... is that I don't think Apple is really doing anything too special to 'pair' devices. My guess is they're just using a serial number of the device (display, camera, whatever) and making sure that serial matches the what is programmed into the mainboard. If you allow any random person to change the paired serial number for say, the display, then you no longer have any guarantee that the new display is actually an authentic device. Maybe someone aftermarket makes a bunch of devices with 0xDEADBEEF as the serial number so you just always pair that. If Apple knows that serial number 0x12345678 was sold to you, and that it is the component you want to install, then they have a guarantee that this part is authentic and should work properly. So, Apple needs a way for you to pair a serial number, but also that the serial number you're pairing is authentic. I'm not sure they have the second piece today.