I would not buy a tmobile phone on craigslist or ebay its too easy for them to report the phone lost or stolen, I just switched from verizon to tmobile and Im dumbfounded how the whole thing is setup with tmobile that you can get black listed months after owning the phone. I would not take the chance. I purchased a verizon S5 on ebay to use it on tmobile, everything worked fine except hotspot, which I use quite often for my ipad when im in my van doing paperwork. I was contemplating if I should buy it on ebay or just picking one up at a tmobile store, at the end I didnt want to take a chance just to save $50-$80 I went to tmobile store today and purchased it. im my opinion if you are not buying it from a friend or a family member, good chances are you will get burned.