ZIP file for the Philips 50PFL4758 television, 5.06 MB, named only by model number. The same size as the 46 inch 4758 package suggests a shared software base across the series, though contents are not stated. Use it to reflash a main board that fails to boot or keeps restarting, via USB update or an SPI programmer. Since panel size differs within a series, confirm the panel code and board version match your set, and always save the original flash before overwriting, so you can roll back if the picture is wrong.
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 @hashmielecom. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.