Hello. Thank you for coming to JustAnswer.
Sorry for the delay and thank you for your patience. My name is Michael. I will be helping you with your question today. Please let me know if there as any additional information that you feel might be pertinent to your question. If I don't hear back from you, I'll provide the best answer I can based on the information you've given so far. You will still be able to reply with additional information or questions at any point during our conversation, and I'll revise the my answer accordingly.
There are different settings in each phone that are responsible for multimedia messages vs text messages. When some can be sent, but not others, it is usually a problem related to these APN settings. You can get the specific settings and the steps to set them up on the followin Tracphone page:
Please let me know if following that corrects the problem. If not, we can continue from there.,