StarTrack 100 HD Plus Galaxy firmware in a 4.91 MB ZIP whose name begins with a numeric prefix, probably a forum attachment number, and is truncated, so the version is not stated. Unpack it to read the actual image name and any notes inside. Such packages are used to restore or update the receiver when it hangs or reboots. Confirm the model and hardware revision before writing, back up the existing settings and, if possible, the current image, and avoid any power loss during flashing.
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 .zip file
Compressed archive that every operating system opens without extra software.