This article helps you troubleshoot data connectivity issues on your iPhone SE
You may have data connectivity issues if you're unable to:
These steps help identify and resolve the underlying cause. After completing each step, test to see if the issue is fixed. If not, continue to the next step.
Verify airplane mode is turned off.
Airplane mode is a feature that prevents your device from sending or receiving a wireless transmission.
Verify that mobile data is enabled.
Verify the data profile is up-to-date.
Verify if coverage is available at your current location.
If your iPhone SE has low signal strength, see if your location is within wireless provider coverage. Depending on your service provider, you can access the coverage map via http://www.boostmobile.com/coverage/ or http://www.virginmobileusa.com/check-cell-phone-coverage.
If your iPhone is in a 4G LTE coverage area, make sure 4G LTE is enabled.
Reset your connection to the Nationwide Sprint 4G LTE Network.
Note: Resetting your connection does not erase any data from your iPhone.
Note: To optimize device performance, be sure your iPhone SE is running the most recent device software. Check for software updates.
If you're still having issues, please select your provider to contact Customer Care: