SR-2000HD Hyper receiver software, version 2.53 with build 20899, released 10 September 2019 per the file name. It comes as a 4.09 MB zip archive, so unpack it to see whether it holds a USB upgrade file or a raw dump for the flash chip. A technician would load it to repair a receiver with corrupted firmware or to restore normal channel operation. Hyper, Super and Extreme editions are not interchangeable, so confirm the exact variant and keep a backup of the current chip before reprogramming.
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 →