NM-A921 – Lenovo Yoga 900-13ISK2
The NM-A921 (LCFC) motherboard is found in the Lenovo Yoga 900-13ISK2 and Lenovo Yoga 2UCN10WW. 3 files are indexed for this board: 3 BIOS files.
File names mention revision 2.0. The earliest file dates from March 2021 (BIOS Archive).
BIOS dumps 3
Board facts
| Board number | NM-A921 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-A |
| Revisions | 2.0 |
| First seen | 2021-03-03 |
| 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-A921
- Lenovo Yoga 900-13ISK2
- Lenovo Yoga 2UCN10WW
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
Who designed the NM-A921 board?
NM-A921 is an LCFC board number used by Lenovo.
Which laptops use the NM-A921 board?
Files in the catalog link NM-A921 to the Lenovo Yoga 900-13ISK2 and Lenovo Yoga 2UCN10WW.
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.