BIOS dump for the Dell Latitude 5490 with the Intel Management Engine region cleaned, marked OKOK, suggesting it was tested as working. Stored in an 8.57 MB RAR, it is meant to be written to the SPI flash with a hardware programmer when the original firmware is corrupt. A clean ME region avoids carrying over a damaged configuration from another board. Always read and keep the original chip contents first, since they hold the service tag and unique data, and confirm the image size fits the installed 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 @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →