I've seen this problem on many boards but never saw a solution so I'm hoping for one now.
I get this message when I try to send picture messages: "Message not sent: service not activated on network." I'm also not able to receive any picture messages or group messages. The problem started happening when I switched from an iPhone on AT&T. I've gone through the troubleshooting assistant with no luck. I've deregistered my iMessages so that's not the problem. Please help!
We're here to help. Let's gather more information. Can you describe exactly what happens when someone attempt to send you a picture message? JoelD_VZW