How to rotate the screen on a Samsung Galaxy S10 and troubleshoot your screen if it's not ...

You can usually automatically rotate the screen on your Samsung Galaxy S10 when you turn the phone horizontally. Here's how ...

How to unlock and rotate the screen on an iPhone, or troubleshoot it if it won't rotate

Rotating the screen on an iPhone is essential for viewing photos and videos in landscape mode, but sometimes it doesn't work. Here's how to fix it.