SR-90000HD receiver software, version 2.53 build 20899 dated 10.09.2019, in a 4.19 MB zip file. The same 2.53 build was issued for several SR-series HD models, but each image targets its own hardware, so match the exact model before use. Unpack to see whether it is a USB upgrade package or a full dump for SPI programming. When writing directly to flash, read the original chip first, check that its capacity fits the image and verify the result after programming.
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 →