BIOS dump for the HP 15-d035dx using board OSAMU2-BT-HPC-MV-MB-V1, the variant marking printed on the mainboard. Note the BT designation differs from other OSAMU2 versions, so the label on your PCB should match exactly. Packed as a 2.78 MB RAR, it is used to reprogram the SPI flash with a hardware programmer when the system fails to post. Read and store the existing chip contents first, check whether the image is a full chip dump, and confirm the size matches before writing.
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 →