To configure APN settings on a Samsung S7, tap the Apps tray from any home screen. Go to Settings and select Mobile networks. Tap Access Point Names. Tap the Menu key, and then tap New APN. Select MORE > Save. Tap the desired APN profile you want to use.
For more details about the process, feel free to read further and follow the steps provided below.
If your mobile data is not working or you purchased a Galaxy S7 that is unlocked and belonged to a different carrier, you might have to create an APN (Access Point Name) to configure your mobile internet and be able to access cellular data on your Samsung device. An APN is what allows you to access mobile internet with your Galaxy S7 or Galaxy S7 Edge.
To add a new APN, follow these steps:
1. Tap on Settings > Connections.
2. Tap Mobile networks.
3. Tap on Access Point Names.
4. Tap on ADD to create a new APN.
5. Enter your APN settings (For APN settings click here).
Press the three dots on the top right of the screen, tap on Save in order to save the APN settings. NOTE: The created APN will show up in the APNs screen after you have saved it. To activate the APN, tap on the radio button located beside it.
Restart the phone and try browsing the Internet. If you still can’t use the mobile internet on your device after updating the APN details, you may fix it by reading this post.