Hello everyone. I did some research and found some answers but I'm confused as it sounds like in certain circumstances you can do this. I bought a*samsung galaxy*gran duos prime (model number sm-g530h/ds) overseas. I live in the u.s. and i wanted to know if i could somehow install the at&t lollipop firmware onto this device without causing any problems? I was reading somewhere else that it could cause an issue or issues depending on the model number. Any help is appreciated.