I have not been able to send or receive MMS (pictures specifically) since my 4.4.2 update a few weeks ago. I have tried the stock Samsung messaging app, as well as ChompSMS and EvolveSMS. I have updated the profile/PRL/firmware/Samsung software, done the network update (##72786#), and powered down/removed the battery from the phone, but I'm still having the same problem. The problem is occurring on WiFi, 4G LTE, and 3G (all with a strong signal). I have no problem taking pictures, and I'm able to send/receive pictures using Facebook Messenger with no errors. I need to know what I need to do to get this working again.
