Firmware for the Openbox S2 mini satellite receiver, version v145, archived as a 3.46 MB RAR. It is used to update the receiver's software or recover a unit that will not boot properly after a failed upgrade. Extract it with WinRAR or 7-Zip and flash it with the receiver's USB update option or a serial loader, depending on the condition of the box. Make sure the model is the S2 mini and that the hardware revision matches, and back up the existing firmware before writing.
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.