BIOS dump labelled LTM11 MB with board number 13247-2, zipped to 3.94 MB. Numbers in this five-digit-dash-digit form follow the Wistron ODM pattern, often seen on Dell and other branded laptops. The archive holds a BIN image meant for writing to the SPI flash chip with a programmer when the original firmware is corrupted. Make sure the PCB shows the same number before flashing. Read and save the existing chip first, and check that the image size matches the chip capacity.
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 @vinafix_bios. 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 →