My SIM stopped working after i inserted it in my old att locked phone
I have att prepaid sim. i moved the sim to my old phone temporarily, as soon as i turned on the the phone, i received a message from att that this phone wont work and i should go to att.com??? so i pulled the sim back into my previous phone which is ATT Radiant Max, and still no service. any idea?
i am still waiting for tech support to get on the call.