my iPhone 6s had AppleCare but this has now lapsed due to its age. I did get the battery replaced in December and I notice that this has extended the warranty by a year. My problem is that the lightning port is so worn that cables no longer make a proper connection as it is so loose. This means even though I plug it in it sometimes does not charge. Is it worth making a genius appointment? What is the likely outcome? The store is a bit too far away to make the trip on a whim.