SR-19000HD receiver firmware, version 2.53 build 20899 dated 10.09.2019, packed in a smaller 3.84 MB zip archive than sibling SR models, which hints at different hardware. The name does not list the flash chip or contents. After extraction, use the file as a USB upgrade or as a raw image for an SPI programmer, depending on its form. Check that the receiver is really an SR-19000HD, back up the original chip contents, and verify the image size matches the memory 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 @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 →