NM-D522 – Lenovo V14 G2
NM-D522 is the LCFC main board used in the Lenovo V14 G2. ChambersDesignInc.com has indexed 3 files for this board — 1 BIOS file, 1 schematic and 1 boardview.
Revisions seen in file names: 0.2. ODM project names: HV461 and HV561. The earliest file dates from June 2024 (Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive).
BIOS dumps 1
Schematics 1
Boardviews 1
Board facts
| Board number | NM-D522 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-D |
| ODM project | HV461, HV561 |
| Revisions | 0.2 |
| First seen | 2024-06-05 |
| 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-D522
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
Who designed the NM-D522 board?
NM-D522 is an LCFC board number used by Lenovo.
Which laptops use the NM-D522 board?
Files in the catalog link NM-D522 to the Lenovo V14 G2.
Is there a boardview for NM-D522?
Yes, 1 boardview file 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.