NM-B471 – Lenovo ThinkPad T480S
NM-B471 is the LCFC main board used in the Lenovo ThinkPad T480S. The catalog lists 7 files for it: 5 BIOS files and 2 schematics.
File names mention revision 1.0 or 4.02. BIOS images are 1 MB. ODM project names: KL1KR and ET481. The earliest file dates from December 2021 (BIOS Archive, Cyberlan Electronics and Schematics & Boardviews Archive).
BIOS dumps 5
Schematics 2
Board facts
| Board number | NM-B471 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-B |
| ODM project | KL1KR, ET481 |
| Revisions | 1.0, 4.02 |
| BIOS chip size | 1 MB |
| First seen | 2021-12-04 |
| Source channels | BIOS Archive, Cyberlan Electronics, Schematics & Boardviews Archive, Boardview Schematics |
| 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-B471
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 |
| .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-B471?
No boardview has been indexed for NM-B471 yet; the schematic is available on this page.
Who designed the NM-B471 board?
NM-B471 is an LCFC board number used by Lenovo.
What BIOS chip size does NM-B471 use?
The BIOS images for NM-B471 are 1 MB.
Which laptops use the NM-B471 board?
Files in the catalog link NM-B471 to the Lenovo ThinkPad T480S.
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.