BIOS dump for the Lenovo IdeaPad 320-14ISK laptop, version 4WCN40WW, provided as a BIN file in a 4.91 MB ZIP. Lenovo BIOS versions follow this pattern, with the first letters marking the platform and the digits the release. A dump like this is written to the SPI chip with a programmer to recover a board that shows no POST after a failed update or a corrupted chip. Read and keep the original contents first, and check that the file size matches the flash chip 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 @SCHEMATICWORLD. 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 →