Software archive for a TRK Z450 device, version 1.3.40, prefixed with the catalogue number 18114 and packed as a 3.51 MB RAR file. The name does not say whether it holds a USB update or a full flash dump, so extract it and examine the contents first. Receivers of this type are usually updated through USB, while dead units are recovered by programming the flash chip directly. Confirm the exact model on the device, and keep a backup of the existing software before applying this version.
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.