In the end, it took about one to two months and cost roughly $300 in parts —as well as some extra cash for skilled help along the way — but Allen created a 16 GB, Rose Gold iPhone 6S that runs iOS 9.
It’s an undertaking that Allen compares to building a car from scratch by getting the parts from a junkyard: some of the parts in the Frankenphone are genuine Apple parts, perhaps scavenged from older iPhones that have been recycled. The phone’s logic board, the corresponding TouchID sensor (which must be a match for the specific logic board), and the camera, he says, are Apple-made parts. But he’s less sure about the provenance of the metal shell that houses the phone, which he thinks was made by another manufacturer… More at Popular Science.
Good luck doing the same.