Software archive for a GI HD Mini receiver, prefixed with the number 72128 and stored as a 3.38 MB RAR file. GI is commonly used for Galaxy Innovations receivers, but no version or date appears in the name, so check the contents for build information. Such packages are usually installed from USB or through a serial loader, and a programmer helps recover a box that will not boot. Verify the model on the unit itself, and save the existing firmware before applying the update so you can roll back.
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 @tvsoftwareworld. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.