Firmware image named NAV50 in .fd format, 1.00 MB in size. The name gives no laptop brand, model or board revision, so the exact target has to be confirmed from the board itself or from a matching original read. Files ending in .fd are typically complete firmware volumes produced by Insyde or Phoenix tools and can often be programmed straight onto an SPI chip. Check that the flash capacity equals 8 Mbit, back up the existing contents, and compare header strings in a hex editor before writing.
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.
How to open a .fd file
UEFI flash-device image, typical for Insyde H2O firmware on Acer, HP and Lenovo laptops.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →