Firmware for the SR-1600HD receiver on the 1507G8M board, version V204, dated 2019-09-10. The same board code and version appear for related SR models, indicating a shared hardware platform, though the model-specific build should still be preferred. The 4.31 MB zip likely contains the image for USB update or direct SPI flashing. Check the board marking on the PCB against 1507G8M, back up the original flash before writing, and confirm the image fits the chip.
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 →