I've repaired my fair share or ipads and iphones, cameras etc, but to be honest, nowadays this sort of thing really doesn't appeal to me and I think I'm in the majority.
I've changed screens on the early ipads more than 5 times and on the early iphones but the screens were often poor quality, the buttons never worked quite the same, the glue never quite stuck properly for long and there were often problems with mics or speakers afterwards.
Yes when computers were the size of a small car we could open them up and slip in a new graphics card, but that was partly because of their size, the parts were generic and even then sometimes there were problems with drivers or compatibility.
But how many people faced with a broken TV, vacuum cleaner, fridge or microwave oven, whip the back off and expect to be able to repair it? We've got used to it with computers but really, we shouldn't be anymore.
These things have become so small, fragile, infinitely complex and full of proprietary parts that are intentionally difficult to get for security reasons, that for by a wide margin, the vast majority of people are way better off leaving it to the experts.
Nowadays I buy Apple care and let them get on with it. They've never ripped me off and what's more in many cases, they give you an entirely new device.
Even when I've paid for a repair out of warrantee the price has been reasonable.
I understand the people that still hark for the old days or for the minority that are proficient with micro-soldering, but for well over 99% of customers, this isn't something they would ever want to do any more.
And frankly, probably shouldn't.
