Most likely Portrait Orientation Lock is turned on. One tap turns it off If your iPhone's screen is not rotating, the Portrait Orientation Lock is probably active. This article explains what it is and ...

So you've realized that your iPhone's screen dims on its own. What's happening there? Is there something wrong with your phone? If you're looking for answers to such questions, you're not alone.

Since the launch of the very first iPhone, every single model that followed — not to mention just about every other smartphone in existence — has had a rotating screen feature. It's simple in its ...