Giving a biological analogy because the technical details seem to be confusing people...Not sure why you provided an analogy for a biological transplant when we are talking about an iPhone in this thread.
If there's any calibration data, it can be saved within the camera module. A14 isn't a human brain. Every A14 is etched the same by TSMC.
How can it be saved in the camera module you keep saying doesn't have any logic? You do see that you're arguing against yourself, right?