Lenovo IdeaPad 330S BIOS dump in 8 MB binary form, labelled as bios lock, which most likely means it comes from or relates to a unit with a BIOS supervisor password lock; the name does not say whether the lock is present or removed. Treat it as a reference until checked. Technicians flash such images to the SPI chip with a programmer to recover lock or boot problems. Confirm the board number printed on the PCB, since the 330S used several boards, and save the original chip contents 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 @lappysan. 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 →