My friend changed from the iPhone 4S to the samsung galaxy s4. We used to do iMessage (I have am iphone too) and since she changed from the iphone to samsung I can get messages from her bit she won't get messages from me unless I turn off 3G because it still thinks she's on the iphone and that's just annoying. (Messages she sends me come through as text not iMessage). Has anyone ever had this problem? It has been a few weeks now and it's really getting annoying. Please please please help!