BIOS archive for the Lenovo B575 laptop, 1.82 MB in RAR format. The name gives only the model, with no board number or version, so identify the motherboard from its PCB label before using it. Such images are written to the SPI flash chip with a hardware programmer to recover a board that will not POST or was bricked by a failed update. Read and store the original contents first, and verify that the image size matches the chip installed on the board.
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 →