NM-A531 – Lenovo ThinkPad X260
The NM-A531 (LCFC) motherboard is found in the Lenovo ThinkPad X260 and Lenovo BX60. ChambersDesignInc.com has indexed 17 files for this board — 13 BIOS files, 3 schematics, 2 boardviews and 1 EC firmware image.
File names mention revision 3.0, 1.0 or 4.0. BIOS images are 16 MB. ODM project names: BX260 and BX280. First posted in February 2018 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 13
Schematics 3
Boardviews 1
Board facts
| Board number | NM-A531 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-A |
| ODM project | BX260, BX280 |
| Revisions | 3.0, 1.0, 4.0 |
| BIOS chip size | 16 MB |
| First seen | 2018-02-04 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| 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-A531
- Lenovo ThinkPad X260
- Lenovo BX60
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 |
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
Questions
Is there a boardview for NM-A531?
Yes, 2 boardview files in .bdv format.
What BIOS chip size does NM-A531 use?
The BIOS images for NM-A531 are 16 MB.
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-A531 board?
Files in the catalog link NM-A531 to the Lenovo ThinkPad X260 and Lenovo BX60.
Who designed the NM-A531 board?
NM-A531 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.