Lenovo G40-70 BIOS firmware for the NM-A272 motherboard, stored in a 3.20 MB zip. No revision, EC or chip information is stated, so check the archive contents. NM-A codes follow LCFC numbering, the Lenovo-affiliated board maker. A programmer such as a CH341A or RT809 is used to write the image directly to the SPI flash when the laptop shows no display or loops on power. Make sure the PCB marking matches NM-A272, save a backup of the existing chip and confirm the image size fits it.
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 @bios_laptop. Enginerys does not host this file.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @bios_laptop | 15 Jun 2022 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 27 May 2023 | Open file on RM Schematics |
| @ComputerBIOSBinFile | 21 Sept 2025 | Open file on RM Schematics |
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 →