A repair software package. Shared as “com.firsthash.smartyoutubetv2.beta_6.8.6_apkgk.com.apk” — a .apk file, 2.76 MB.
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.