Ensure that you have an active data plan, available data, and that your mobile data is enabled.

2. Android Configuration:

If you're still encountering difficulties, follow these steps to check and adjust your APN settings on your Android device:

a. Open your "Settings" app, typically identified by a gear icon.

b. Navigate to "Mobile networks" within "Connections" or "SIM manager".

c. Select "APN" or "Access Point Names". If you can't locate it in the list, try clicking on "More options" to access it.

d. Tap the "+" icon, typically located in the upper right corner of the screen, to add a new APN.

e. Enter the APN settings in the following order:

f. Save the settings using the "Save" option or the "Check" icon in the upper right corner, depending on your device's interface.

g. Ensure you select the newly created access point.

3. Completion:

Once you've completed these steps, you should be able to access the internet on your device without further issues.