The "could not activate cellular data network" error means your iPhone won't be able to use the mobile data you're paying for ...

When you're always on Wi-Fi, it's easy to overlook just how much data apps like Spotify use per month. But this becomes an issue when you have limited cellular data. Maybe you only have a 5GB monthly ...

The latest version of the iOS 9 beta has brought some goodies, among them the new Wi-Fi Assist feature, which will recognize bad Wi-Fi connections, and use cellular ...

Have you ever watched your iPhone attempt to load a webpage with a poor Wi-Fi connection, and wondered why it doesn’t just switch to 3G automatically? In currently iOS releases, your device can’t do ...