NM-D211 – Lenovo Air 15ITL 202
The Lenovo Air 15ITL 202 and Lenovo GS55JGS55K are built on the NM-D211 board designed by LCFC. ChambersDesignInc.com has indexed 10 files for this board — 6 BIOS files, 2 schematics, 2 boardviews and 1 EC firmware image.
Revisions seen in file names: 1.0 and 0.1. BIOS images are 8 MB and 16 MB. First posted in July 2022 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 6
Schematics 2
Boardviews 2
From the uploader
LENOVO Air 15ITL 202 GS55J GS55K NM-D211 Rev 1.0 82GM UB2 UC704 U703 UC702 2020-08-14
Board facts
| Board number | NM-D211 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-D |
| Revisions | 1.0, 0.1 |
| BIOS chip size | 8 MB, 16 MB |
| CPU generation | Intel 11th gen |
| Graphics | discrete GPU |
| First seen | 2022-07-27 |
| 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-D211
- Lenovo Air 15ITL 202
- Lenovo GS55JGS55K
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 |
| .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
What BIOS chip size does NM-D211 use?
The BIOS images for NM-D211 are 8 MB and 16 MB.
Which laptops use the NM-D211 board?
Files in the catalog link NM-D211 to the Lenovo Air 15ITL 202 and Lenovo GS55JGS55K.
Who designed the NM-D211 board?
NM-D211 is an LCFC board number used by Lenovo.
Is there a boardview for NM-D211?
Yes, 2 boardview files in .bdv and .tvw format.
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.