Android application package whose Chinese title translates roughly as an ultra-simplified TV desktop with single-row apps, meaning a lightweight launcher for TV boxes or smart TVs. The APK is only 458 KB. Technicians and installers sideload such launchers onto Android set-top boxes to replace a heavy or broken home screen. Install it via USB storage or ADB, and keep the stock launcher available. Some firmware builds restrict third-party home apps, and a launcher that fails can make the device awkward to navigate.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @tv_software. Enginerys does not host this file.