How big are the attachments? MMS sizes are very limited, so if they're too big you'll need to share links to Google Drive, Dropbox or some other cloud services.
Turned on and off. Took battery out for awhile. Tried to follow help portion of texting protocol no info there. The attachment sizes are just single pictures that I have attached hundreds of times with no problem. It just quit attaching to MMS texts. Thanks for your help...