Firmware dump for the Dell Vostro 5470, Quanta motherboard DAJW8CMB8E1 revision E, supplied in a RAR archive. Quanta is the ODM that uses the DA...MB numbering seen here. Technicians flash such an image onto the SPI BIOS chip with a hardware programmer when a board is bricked, stuck in a boot loop or shows no display after a failed update. Save the original chip contents first so the service tag and system data can be restored, and confirm the image size matches the flash capacity printed on the 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 →