NM-A401 – Lenovo G41-35
The NM-A401 (LCFC) motherboard is found in the Lenovo G41-35 and Lenovo G51-35. ChambersDesignInc.com has indexed 5 files for this board — 5 BIOS files and 1 EC firmware image.
File names mention revision 1.0. ODM project names: BMWQ3 and BMWQ4. First posted in January 2019 in BIOS Archive.
BIOS dumps 5
From the uploader
Lenovo G41-35 G51-35 G50-30
BMWQ3/BMWQ4 NM-A401
Rev 1.0
Board facts
| Board number | NM-A401 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-A |
| ODM project | BMWQ3, BMWQ4 |
| Revisions | 1.0 |
| First seen | 2019-01-19 |
| Source channels | BIOS Archive |
| About the number | LCFC is Lenovo's joint venture with Compal; its main boards use NM- numbers and sub-boards NS- numbers. |
Laptops that use NM-A401
- Lenovo G41-35
- Lenovo G51-35
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the NM-A401 board?
NM-A401 is an LCFC board number used by Lenovo.
Which laptops use the NM-A401 board?
Files in the catalog link NM-A401 to the Lenovo G41-35 and Lenovo G51-35.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.