I have been trying to Google an answer to this and I can't find anyone saying that they were able to have Apple just swap out the headset jack on their 6/6 Plus. I ask because I would rather they did, since I am running the iOS 9 and there seems to be a problem in Beta 2 where it's backups become corrupt in iTunes. I hope it'll be fixed in the next build, but I am curious to know. I wouldn't take the phone in for this except the fact that the headset jack (which has been loose since I got the phone compared to my 5s) is having problems keeping headphones in and cuts out the audio intermittently on different devices all the time. It started doing this under 8.3, but it has just gotten progressively worse.