It's easy to change your lock screen on an Android to a photo of your own or a default wallpaper. Here's how to do it.

Clear space, optimize your battery and update the basics. These quick changes can make an old Android phone feel snappier.

To lock Signal, open its in-app settings and select "Screen Lock." It'll use the same security method and passcode that your phone uses.

Android 15 came full of new features and capabilities, but Google also reminded us of some features that are available to devices with previous Android versions. Such is the case of the AI-supported ...