BIOS image for the Dell Inspiron 3420, listed without a file extension and carrying no board number, revision or firmware version in its name. Its size of 8 MB indicates a full dump of a 64 Mbit SPI flash chip, suitable for writing with a CH341A or similar programmer. Because the name says nothing about the motherboard variant, compare the board markings with a known source if possible, back up the original chip and check that the image opens as a valid BIOS region before flashing it.
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 @bios_laptop. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →