8.00 MB BIOS dump for the Lenovo IdeaPad 300-15IBR with a Pentium processor on the NM-A471 mainboard, marked as tested and working. NM-prefixed numbers follow the LCFC numbering used for Lenovo boards, and the number is printed on the PCB. The size suits a 64 Mbit SPI flash chip. Make sure your board carries the same CPU variant, since Celeron and Pentium versions can differ, read and save the original chip contents, and then program the image with a CH341A or similar tool.
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 .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 →