NM-F331 – Lenovo V14 15 Gen 4
The NM-F331 (LCFC) motherboard is found in the Lenovo V14 15 Gen 4. 8 files are indexed for this board: 3 BIOS files, 2 schematics, 3 boardviews and 1 EC firmware image.
File names mention revision 1.0 or 0.1. BIOS images are 8 MB and 16 MB. ODM project names: KS686, KN580 and KS485. First posted in December 2023 in Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive.
BIOS dumps 3
Schematics 2
Boardviews 3
From the uploader
LENOVO V14_15_Gen_4_Intel_LCFC KS485 KS585 KS686 KN580 NM-F331 REV 1.0 8MB7 16MB BIOS
Board facts
| Board number | NM-F331 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-F |
| ODM project | KS686, KN580, KS485 |
| Revisions | 1.0, 0.1 |
| BIOS chip size | 8 MB, 16 MB |
| First seen | 2023-12-21 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics, 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-F331
- Lenovo V14 15 Gen 4
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.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .tvw | Tebo-ICT .tvw boardview | FlexBV or Tebo-ICT View |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
What BIOS chip size does NM-F331 use?
The BIOS images for NM-F331 are 8 MB and 16 MB.
Is there a boardview for NM-F331?
Yes, 3 boardview files in .bdv and .tvw format.
Are these files free?
1 of the posts are marked VIP or paid in their source channel; the others are ordinary posts. ChambersDesignInc.com does not host or sell files.
Which laptops use the NM-F331 board?
Files in the catalog link NM-F331 to the Lenovo V14 15 Gen 4.
Who designed the NM-F331 board?
NM-F331 is an LCFC board number used by Lenovo.
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.