Openbox Fatih 1453 FSM receiver software dated 4 January 2015, packed as a 6.90 MB RAR with index number 43457. The archive likely contains the firmware image and possibly a loader. Such packages help recover a receiver stuck in boot or restore the software after a bad update. Check that the hardware matches the Fatih 1453 FSM variant, follow the proper flashing method for the box, and back up the current flash so the original state can be restored if needed.
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.
7-ZipWinRARThe Unarchiver (macOS)