Samsung Behold

Highlight, Memoir & Solstice

Internet Settings:
Enter *#6984125#.
Select Admin Setting > Network > Call Settings > Connections.
Select Network Profiles.
→ Delete DM Profile and TMO_DS Profile.
Enter the following information:
→ Name: good2go web
→ APN: att.mvno
→ Auth Type: Leave blank
→ Protocol: HTTP
→ Home URL: http://ztdevice.home
→ Proxy: proxy.mvno.att.ztarmobile.com
→ Port: 80
→ Linger time: Leave blank
Select Internet (you will need to edit the Browser Profile.)

MMS Settings:
Enter the following information:
→ Name: good2go web
→ APN: att.mvno
→ Proxy: proxy.mvno.att.ztarmobile.com
→ Home URL: http://ztdevice.home