Openbox S3 firmware package at version 1.16, a 3.50 MB ZIP intended for the standard S3 receiver rather than the Micro variant. Service technicians apply such images to repair software faults such as boot hangs, missing menus or broken features after a failed update. Make sure the target unit is the plain S3 model, since loading firmware meant for a different hardware revision can leave the box unbootable. Back up channel lists, and use a reliable USB stick or serial cable with stable power 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.