04-07-2013 08:23 AM
Welcome to BlackBerry Support Forums
MMS is a part of our data services , are you getting a red X or the send option is not available ? Are you sure you have sufficient data plan for this feature .
first try those steps in the same sequence :
1- Register your Handheld .
2- Resend your Service Book
3- Then perform a battery pull restart like this while the device is powered On remove your battery wait for a min. then reinsert it back
Please note you must recieve those registration message in your message box. if problem persists then give a call to your carrier to know about the issue . Also look at this KB :
KB13667 : Unable to send photos in MMS messages