In order to use 3G services you need tochoose option for the Network mode in the Network Setting section, where you can choose between the UTMS, GSM and Dual Mode. Once you have enabled 3G and your phone is ready to accept 3G network data you can go ahead edit or set up a new Access Point Name (APN) profile
Go to Menu > Settings > Configurations.
Select Personal Configuration settings > Add.
Fill in Account Name.
Select Access Point Settings > Bearer Settings.
Enter the Access Point Name (APN).
Leave Username and Password blank.
Go back to Personal Configuration menu.
Select the Account Name and click Option and choose Activate.