If you want to connect to the internet, you can either do it via Wi-Fi or data network.

How to connect to Wi-Fi:
1. From the main screen, tap the "Apps" icon located at the bottom of the screen.
2. Tap "Settings."
3. Tap "Wi-Fi." If necessary, tap the slider to turn Wi-Fi® on. You know that Wi-Fi is on when the slider turns green and displays "ON."
4. A list of the available Wi-Fi networks will populate the screen. Tap the network to which you would like to connect.
5. Tap "Connect." If you are prompted for additional security measures, follow the prompts on the screen and enter the required credentials.
6. To return to the main screen, press the HOME key.

How to connect using data network
1. From the main screen, tap the "Apps" icon located at the bottom of the screen.
2. Tap "Settings."
3. Tap "Data Usage"
4. Turn on Data Usage

How do I get back on the Internet with my Samsung Galaxy core prime