Firmware for the HP ProBook 4535s in its UMA configuration, meaning integrated graphics only with no discrete GPU, packed as a 1.50 MB 7z archive that opens with 7-Zip. Using a dump from the discrete-graphics variant on a UMA board, or the reverse, can cause video or boot problems, so confirm the board type. Back up the existing SPI chip contents with a programmer before writing, and verify that the image size fits the chip.
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 @efibios. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →