Aporte original por: sam grossman ,
Phone was probably reported lost or bill was not paid and has been Blacklisted. Will not work on any carrier in USA...Only out of USA will get cellphone service..Maybe they switched the motherboard on you with a blacklisted phone....Check the back of the phone, theres an imei# then go to settings/general/about. Make sure both imei#'s match. If not then Logic board was swapped....