Software for the SR-1200HD receiver built on the 1507G8M board, version V204, dated 2019-09-10. The board code in the name is useful because the same firmware is shared by other models using that platform, but it must match the PCB marking in the unit being repaired. Inside the 4.31 MB zip is likely the flash image used to recover a receiver stuck at boot or with a damaged loader. Write it via USB or an SPI programmer, and dump the original chip before erasing anything.
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 @tamirkaran_chanel. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →