Can you use an old ATT phone and change it over on sprint? it is a Samsung Flight II
Thanks for your inquiry. Unfortunately phones are coded to work with the certain provider only, so that phone would not be able to be activated on the Sprint network. Thanks!
Sprint Social Care Team
In addition, AT&T and Sprint use entirely different technologoies that are not compatible. It is physically impossible for AT&T phones to work on Sprint and vice versa.