Android application package named Noor 4k base, 77.3 MB in size. The name gives no details about the target device, version or purpose, beyond suggesting a base build related to 4K content. APK files install on Android devices and TV boxes, either through the package installer or with adb install from a computer. Before using it on a repair or service unit, confirm it matches the hardware and Android version. Scan any unofficial APK for malware, and keep a backup of the device firmware in case the installation causes problems.
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 @hashmielecom. Enginerys does not host this file.