Check if the Portrait Orientation Lock is on; it stops the iPhone screen from rotating. Open Control Center and tap the lock icon to turn off rotation lock if it's active. Some apps don't rotate; test screen rotation with another app like Safari to be sure ...

Usually, when you hold your iPhone, it’s in portrait mode. With the iPad, it is usually in landscape mode. But there will be times when you will want to rotate the screen the other way. Whether it’s to read an e-book more comfortably, view a website ...

Posts from this topic will be added to your daily email digest and your homepage feed. is a senior reviewer with over a decade of experience writing about consumer tech. She has a special interest in mobile photography and telecom. Previously, she worked ...

Peter is a writer and editor for the CNET How-To team. He has been covering technology, software, finance, sports and video games since working for @Home Network and Excite in the 1990s. Peter managed reviews and listings for Download.com during the 2000s ...

Tired of your iPhone automatically rotating the screen every time you accidentally tilt your phone just a little more than you meant to? There’s an app for that. Or rather, an OS update. Apple launched a new beta version of iPhone OS 4.0 for developers ...