BIOS dump for Wistron project Brook BH, board 14276-1M, with an extra 04X09 marking in the name, supplied as a 3.98 MB ZIP. This board is used in the Acer E5-772, although the name itself does not mention the laptop. Use it to rewrite a corrupted SPI flash with a programmer. Verify the board number on the PCB matches 14276-1M, back up the original chip first, and check the image size against the flash capacity 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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →