Phones Unlocked by iTechUnlimited Until Now:
Android versions Cupcake (1.5) up to Ice Cream Sandwich (4.0)
Press "Menu" button on your device.
Tap "Settings" > "Wireless Controls" or "Wireless and Network" > "Mobile Networks"
→ Check if “Data Roaming” or “Use Only 2G Networks” are both UNCHECKED.
Tap Access Point Names.
Press Menu button and select New APN.
Enter the following information:
→ Name: good2GO mobile
→ APN: att.mvno
→ Proxy: proxy.mvno.att.ztarmobile.com
→ Port: 80
→ Username: Leave blank
→ Password: Leave blank
→ Server: Leave blank
→ MMSC: http://mmsc.cingular.com
→ MMS Proxy: proxy.mvno.att.ztarmobile.com
→ MMS Port: 80
→ MCC: 310
→ MNC: 410
→ APN Type: default,supl,mms
Press the "Menu" button on your device and then "Save" on the screen.
Access Point Names are composed of several settings. These settings are essentially text fields that you must fill in in order to connect to data services. APNs exist because carriers broadcast and receive data over government regulated radio frequencies. Each phone must be specially configured to use these settings or otherwise potentially suffer from data connection issues, such as the inability to send MMS or use mobile data. iTech Unlimited Phone Data Settings