Ok...this is much more simple than you guys are making it...This works, guarenteed all, only issues is you may have problems with picture messaging, net10s horrible customer service will help you im sure
Apn settings
APN - tfdata
Thats it, put nothing else in that section
MMs settings
MMS APN - tfdata
nothing in any other box than this one
MMSC -
http://mms-tf.net
Thats it, just make sure you do it with the access point app, network settings whatever you guys call it, with the 920 it had a different name, but its easy to track down
Your welcome