I have a basic 15$/month texting plan on my samsung galaxy sII phone. I have always been able to send pictures via text without using any data or wifi, however recently, it will tell me that the phone " cant send MMS, and to check my APN settings. If anyone can help me solve this problem it would be greatly appreciated, as I send pictures all the time. Additional info: I have been using the app "Chomp" to send texts, however I have the same issue with the preprogrammed messenger app. Thanks!