Cause 4 of 5: The MMS isn't written correctly
To send an MMS, it needs to be written and sent correctly.
Solution: See how to write and send a picture message.
1 Create new picture message
Press Messaging.
Press the new message icon.
2 Select recipient
Press the search field and key in the first letters of the recipient's name.
Press the required contact.
3 Write text
Press the text input field and write the text for your picture message.
4 Insert a picture
Press the gallery icon.
Press the required picture.
5 Send the picture message
Press the send icon when you've finished your picture message.
6 Return to the home screen
Press the Home key to return to the home screen.