Earlier quoted context omitted.
The reason it can be done in China is because those shops illegally obtain the parts (whether counterfeit or stolen, since Apple won't intentionally sell them to anyone) and resources (schematics, software, etc) to be able to do so. This situation is both good and bad. Stolen parts are good, in the sense that this grey market at least allows consumers to repair devices cost-effectively. It's also bad, because besides…
By volume, the chips on the open market aren’t stolen and most aren’t counterfeit. Most are legitimate and a fair amount of the suspiciously cheap parts are binned or older revisions. The scale of the chip marketplace is more akin to sum of the agricultural output of California’s Central Valley - not your weekend farmers market. No one is messing around with stolen parts in these kind of quantities. The reason compan…
The auto industry has widespread part available for decades with no ill effects.