I have an AT&T HTC One running a Straight Talk (ATT LTE) SIM. When I first had the phone everything was running great. Great speeds, SMS, MMS, etc. Now, for some reason, I no longer get any MMS! I still get full speeds and regular messages, but not pictures or group messages (sending or receiving).
We set my wife's S3 Mini up the same way, and she is able to get everything (minus LTE for obvious reasons). The only difference is that I updated to 4.4.2.
I've tried every single ST APN I can find, and still am not able to send/receiving any MMS's. Has anyone else had this issue?
P.S. If this is in the wrong area, I apologize.