If cellular data is not working on your iPhone, there are several ways to potentially resolve the issue.

All the reasons your cellular data may not be working and how to fix it.

The "Reset Network Settings" button on the iPhone not only resets your Wi-Fi settings -- resulting in a clean slate with respect to Wi-Fi access points and their passwords -- it also resets your ...

If you live in an area with poor cellular coverage, can you boost your internet connection by requiring your iPhone to use Wi-Fi? Not precisely–and it depends on your model of iPhone or iPad.

Some iPhone users who have upgraded to iOS 12.1.2 are reporting a variety of issues, mostly that their devices are being disconnected from cellular data.

Unfortunately, as more iPhone owners have upgraded, the consequence of Apple’s rushing is now clear: the company made it worse... iOS 12.1.2 is breaking cellular data for users around the world.