My warranty is due to end in a couple of weeks, and since owning my iPhone (6 Plus), I've had an issue with the home button. After owning it a couple of weeks the button became loose and occasionally unresponsive, so I took it to Apple who replaced the screen, as the home button is attached. Few months later the same thing happened again, and they offered to replace my phone. I declined as I realise that the replacements are refurbished, and preferred to keep mine as it was still pretty new. They tested it and then replaced the screen again. Now the issue has started again, so I've booked in to the Genius Bar for next week, and, assuming they have my previous visits on record, I'm going to wipe my phone, tell them the problem, and then they'll hopefully replace it. Now I know the replacement phones aren't new. I've had my phone for 11 months so I wouldn't expect to be given a new one, but what exactly is Apple's definition of refurbished? Are they just returned phones, or do they have a mix of returned parts and new parts - like a new case, screen etc? That's what I've read online, but not sure how true this is.