This tool functions as a sidebar or "quick ball" for video apps. Once enabled, you can access it by swiping from the edge of your screen while a video is playing.
: Take screenshots, record your screen, or cast your video to an external display with a single tap.
: Open the downloaded file and select Install . If you are trying to restore the "screen off" feature, you may need to Uninstall updates for the current Security app first.
: Open other apps in small windows on top of your video player.
: Obtain the latest Xiaomi Security APK from trusted repositories like APKMirror.
: Go to Settings > Privacy > Special Permissions > Install unknown apps and grant permission to your browser.
: Apply filters like Cinematic, Retro, or B&W to live video playback to improve the viewing experience. How to Download and Install Video Toolbox APK
The is one of Xiaomi’s most useful software enhancements, designed specifically for heavy media consumers . If your device didn't come with this feature out of the box, or if a recent update removed specific functions like "Play video sound with screen off," you can manually install or update it using the Security APK . Key Features of MIUI 12 Video Toolbox