I recently purchased an iPhone 7 Plus. So I decided to get my 6s plus ready to sell to gazelle so I turned off find my iPhone and removed the iPhone from my account then reset and erased the phone. I went to check the phone to make sure everything was good and I am checking it and it says it is linked to another apple id. It shows me the 2 letters of the apple id and the rest is blacked out and the id is nothing close to anything I have ever used. Any ideas what might have happened? I purchased it directly from the apple store a little over a year ago and even got apple care. I have done this process before with my older iPhones but never removed the iPhone from my account before erasing it. That is the only thing i can think of that is different from what I did before. This is just so weird.