Working BIOS dump for an HP 15 notebook on the CSL50/CSL52 platform, Compal board LA-E791P revision 2.0, with a date code of 2017-07-18 in the name and marked OK by its source. The raw .bin image is 8 MB, matching a 64 Mbit SPI flash chip. LA-prefixed numbers come from Compal, which builds many HP boards. Program it with a CH341A or similar after saving the existing contents, and confirm that the revision printed on the PCB matches before writing anything.
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_laptopomi. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →