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

Your cell phone may work abroad, but don't assume it's free. Those roaming charges can shock you with bills far exceeding expectations. To lower your costs, travel expert Rick Steves, on his website ...

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 ...