Select Settings > Options.
Complete one of the following:
- BlackBerry v4.0 or earlier, click TCP/IP.
- BlackBerry v4.1 to 5.0,click Advanced Options > TCP/IP.
- BlackBerry v6.0 and later, click Device > Advanced System Settings > TCP/IP.
Enter yourmobile into the APN field. Important: Make sure there's NO space before or after yourmobile
Press the Menu key.
Select Save.
