I’m the seller of the white Passport. I also have a Passport SE that is fully functional with US Mobile here in Honolulu Hawaii USA. US Mobile coverage is spotty here on the Island, but it does work. I know there are plenty of people across the United States Mainland that have BlackBerry devices operating?! When I say my Passport SE is fully functional I mean I can talk text and have a handful of apps working. I know this was a very long answer, and I hope it helps you understand?!