1. Tap the Menu key and then tap Settings
2. Tap more settings then Mobile networks
3. Tap on Access point names
4. Tap the Menu button
5. Tap on new APN

Then enter the following information:
Name: BMOBILE Internet
APN: internet
Proxy: Leave Blank
Port : Leave Blank
Username: Leave Blank
Password: Leave Blank
Server : Leave Blank
MMSC: Leave Blank
MMS proxy: Leave Blank
MMS port: Leave Blank
MCC : 537
MNC: 01
Authentication type: PAP
APN type: default
APN protocol : IPv4
Bearer: Unspecified
Tap the Menu button, then select Save