Firmware archive in RAR format, 412 KB, marked HCL and P21 PDC, apparently a BIOS dump for an HCL laptop or desktop board identified as P21. The name gives no chip type, version or ME status, so open the archive and check the image size against the SPI flash on the board before writing. Dumps like this are used to recover a corrupted BIOS with an external programmer such as a CH341A. Always read and save the original chip contents first so the machine can be returned to its previous state.
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 @afsbiosfree. 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 →