Lenovo G400s BIOS image in raw binary format, 8 MB, carrying an unexplained Br tag in its name. No mainboard number, processor variant or firmware version is stated, so compatibility must be checked against your own board. Technicians program dumps like this into the SPI flash chip with a CH341A or comparable programmer to recover from corrupted firmware or no-boot faults. Read and archive the existing chip contents before writing, and confirm that the chip capacity matches the 8 MB image.
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 @laptopbios21. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →