NM-B902 – Lenovo ThinkPad T490
The Lenovo ThinkPad T490 is built on the NM-B902 board designed by LCFC. ChambersDesignInc.com has indexed 2 files for this board — 2 BIOS files.
Revisions seen in file names: 1.0. ODM project names: FT590 and FP531. The earliest file dates from February 2022 (BIOS Archive).
BIOS dumps 2
Board facts
| Board number | NM-B902 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-B |
| ODM project | FT590, FP531 |
| Revisions | 1.0 |
| First seen | 2022-02-01 |
| Source channels | 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-B902
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.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .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
Which laptops use the NM-B902 board?
Files in the catalog link NM-B902 to the Lenovo ThinkPad T490.
Who designed the NM-B902 board?
NM-B902 is an LCFC board number used by Lenovo.
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.