Second copy of a ProBook 4520 firmware dump with a C suffix, 4 MB and without an extension. What C stands for is not stated, and it may simply tell this read apart from another one. The name gives no board number or BIOS version. The image fits a 32 Mbit SPI chip and can be loaded into any programmer tool as raw binary. Compare it with its pair before flashing, keep the original chip contents as a backup, and confirm the board matches.
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 @biosfilebins. 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 →