HP ProBook 4525s BIOS firmware in a 1.41 MB RAR archive, linked to Wistron board number 09287-1. The file name itself states only the model, so check the archive contents and any notes inside before use. Wistron numbers its HP boards with a five-digit code and revision suffix printed on the PCB, and that marking should match before flashing. The image is meant for reprogramming the SPI BIOS chip with a hardware programmer when the laptop fails to start. Read and keep the original chip first, and check that image and chip sizes agree.
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 .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 →