NM-D552
NM-D552 is an LCFC Lenovo main board number. 2 files are indexed for this board: 1 BIOS file and 1 schematic.
BIOS images are 32 MB. The earliest file dates from July 2025 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 1
Schematics 1
Board facts
| Board number | NM-D552 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-D |
| BIOS chip size | 32 MB |
| First seen | 2025-07-12 |
| 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. |
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.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the NM-D552 board?
NM-D552 is an LCFC board number used by Lenovo.
Is there a boardview for NM-D552?
No boardview has been indexed for NM-D552 yet; the schematic is available on this page.
What BIOS chip size does NM-D552 use?
The BIOS images for NM-D552 are 32 MB.
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.