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

Your iPhone's status bar is a helpful dashboard that provides a glance at the vital signs of your smartphone. You're probably used to seeing the Wi-Fi and cellular data icons in this indicator field, ...

A family says it was wrongly billed $13,470 for using data overseas. A family on vacation overseas racked up thousands of dollars in data roaming fees despite setting their phones to airplane mode, ...