Repair your iPhones before trade-in or Apple may give you nothing

One of the reasons iPhones cost as much as they do is Apple knows most people aren't paying full price for them. You're almost always trading in an old device or getting some kind of carrier discount, right? Well, if you're doing the former, you may want to keep your old iPhone in good shape.MacWorld executive editor Michael Simon wrote a cautionary tale purporting that Apple would not accept a 256GB variant of the iPhone 15 Pro Max (which should have nearly the highest trade-in value of any exi