Go to Settings  More Cellular network settings Access point names Press the Menu and select New APN Enter name: Public Mobile
APN: sp.mb.com
Proxy:
Port:
Username:
Password:
Server:
MMSC: http://aliasredirect.net/proxy/mb/mmsc
MMS Proxy: 74.49.0.18
MMS Port: 80
MCC: 302
MNC: 220
Authentication type:
APN type: Keep the default values set by device for all blank fields shown above. | 
