How to find and change the APN settings on my Samsung Galaxy 551

Click each step to see the action. You can also click the picture or use the arrow keys.

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Some third-party applications might require a direct TCP or HTTP connection to the Internet. For example, a stock price application might require a connection to the Internet to retrieve the latest stock prices. The TCP settings might be required for the third-party application to access the Internet.
The correct settings can be obtained by contacting your service provider.
1. Touch Menu.
2. Touch Settings.
3. Touch Wireless & networks.
4. Touch Mobile networks.
5. Touch Access Point Names.
6. Touch the required APN.
7. The APN settings will be displayed.