Lenovo ThinkPad A475 BIOS image for machine type 20KM, with BIOS version R04ET45W given in the name. The file is a 16.0 MB binary suited to a 128 Mbit SPI flash chip. Lenovo version strings like this identify the exact firmware build, useful when matching a known-good image. Confirm the machine type on your unit, back up the existing chip with a programmer before writing, and verify the flash afterwards to restore a non-booting or corrupted 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 @biosdumpcomputer. 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 →