BIOS image for the HP ProBook 450 G5 on the Quanta board DA0X8CMB6E0, revision E. The name indicates a 16 MB flash, which corresponds to a 128 Mbit SPI chip. The dump is packed in a ZIP. Quanta uses the DA0 numbering with project code, MB and a revision letter, so check the full number printed on the PCB. It is used to reprogram the flash with a programmer after corruption. Save the original dump first, since it may hold serial and activation data, and only write it to a chip of the same 16 MB capacity.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →