Ah, I getcha. I used to work for a major phone company doing repairs, and they made us learn to do iPhones, iPads, and MacBooks through Apple’s certification classes at the time. Otherwise Apple wouldn’t let us touch their devices. No NDA back then though. Then we got bought out by probably the biggest third party repair/insurance company at the moment. I left not long after since life got in my way. But it was a sweet gig. I learned a lot.