NM-A711
NM-A711 is an LCFC Lenovo main board number. ChambersDesignInc.com has indexed 2 files for this board — 1 BIOS file, 1 boardview and 1 EC firmware image.
BIOS images are 8 MB. The earliest file dates from April 2022 (Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive).
BIOS dumps 1
Boardviews 1
Board facts
| Board number | NM-A711 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-A |
| BIOS chip size | 8 MB |
| Flash chip | W25Q64BV |
| First seen | 2022-04-10 |
| 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. |
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 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.
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 |
| .tvw | Tebo-ICT .tvw boardview | FlexBV or Tebo-ICT View |
| .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
Is there a boardview for NM-A711?
Yes, 1 boardview file in .tvw format.
Who designed the NM-A711 board?
NM-A711 is an LCFC board number used by Lenovo.
What BIOS chip size does NM-A711 use?
The BIOS images for NM-A711 are 8 MB. Flash chips named in the files: W25Q64BV.
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.