So the 4S I bought from Swappa has 3 more months of AppleCare+. Although the phone itself is in great condition, the charging cable came in... not so great condition. I was thinking of taking it to the Apple Store mid-January (the post-Christmas return/exchange rush should be over by then, right? ) and seeing if they can do anything while I am still covered by AppleCare+. However, I read just yesterday that technically the seller needs to "transfer ownership" or something by faxing some documents to Apple. Does Apple typically actually require this? I'm asking because the seller shipped the phone in the original box that matches the serial number of the phone, and they also unregistered their phone from Apple's My Support Page so that I was able to register the phone with my own Apple ID and name and address. I'm wondering if this would be enough for most Apple stores to use AppleCare+, because I've bothered this poor seller so much post-sale I would feel kind of guilty harassing them yet again to do something somewhat time-consuming (especially since the phone was their grandmother's, so they likely don't even have the proof of purchase on them). I'm just wondering if people can give me their own experiences with buying used devices with AppleCare+ if they were able to use their AppleCare+ without officially transferring ownership.