It's imperative that you are able to participate in group texts with Android devices, Emnits. What is the model of the iPhone you have? Just to clarify, are you using the standard messaging application that came installed on the phone? I know you mentioned that you are not able to participate. Do you still receive messages within the group text from Android users? What happens when you are in the group text and you attempt to send a picture/text? 

MarshallP_VZW