Add text: Settings > Display & touch > Lock screen > Add text on lock screen. Edit shortcuts: Settings > Display & touch > Lock screen > Shortcuts. Change how you unlock it: Search Settings for Screen ...

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.

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