I will give you 6 easy steps to configure your iPhone 3GS to work on cellular data. I have a Reliance connection.
- On Main menu screen, click on Settings.
- Click on General.
- Click on Network.
- Turn “Cellular Data” ON.
- Click on Cellular Data Network.
- Click on APN. Enter “rcomnet” in small letters.
You are good to surf on Cellular data network. Enjoy !!!