BIOS archive for a board with project name HEVIN-B5W 6U, Wistron motherboard 15200-1, PCB code 448.04A36.0011. No laptop brand or model is given in the name, so identification must rely on the board number. The 6U token most likely points to a Skylake platform, but treat that as unconfirmed. Technicians use such images to reprogram the SPI flash with a hardware programmer when a board will not post. Verify the Wistron number on the PCB, back up the existing chip and check that the image size suits the flash 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 @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 →