Doesn't really matter. They can still be flipped for a few hundred bucks for the components.
see https://www.fool.com/investing/2020/06/02/apples-software-tr... and https://www.dailymail.co.uk/news/article-8380857/Apple-Store...
For recent iPhones (11+), batteries and screens are tied to the original iPhone. You can't swap out a battery/screen from a spare iPhone 11 to a non-functioning iPhone 11 and resurrect the dead iPhone.
see https://www.ifixit.com/News/32343/apple-is-locking-batteries... and https://www.ifixit.com/News/33147/apple-is-discouraging-scre....
For iPhone 12, Apple expanded the locked-to-device components to the camera module. see https://www.ifixit.com/News/45921/is-this-the-end-of-the-rep...
The iPhone 12 behaviour is sneaky - it looks like the transplanted component works, but it slowly malfunctions.
see https://www.fool.com/investing/2020/06/02/apples-software-tr... and https://www.dailymail.co.uk/news/article-8380857/Apple-Store...
For recent iPhones (11+), batteries and screens are tied to the original iPhone. You can't swap out a battery/screen from a spare iPhone 11 to a non-functioning iPhone 11 and resurrect the dead iPhone.
see https://www.ifixit.com/News/32343/apple-is-locking-batteries... and https://www.ifixit.com/News/33147/apple-is-discouraging-scre....
For iPhone 12, Apple expanded the locked-to-device components to the camera module. see https://www.ifixit.com/News/45921/is-this-the-end-of-the-rep...
The iPhone 12 behaviour is sneaky - it looks like the transplanted component works, but it slowly malfunctions.