Question, I have a 6+ that was for VZW (but as many others have said they are factory unlocked from the get go) but we switched our family over T-MO (I paid off all the device fees before doing that) and we have nothing tying the phone from being sold. So, my question is how do I list that when I sell it? I is a 16GB SG 6+ it will be unlocked though. Thanks!