NM-A901 – Lenovo Yoga 910 13IK
NM-A901 is the LCFC main board used in the Lenovo Yoga 910 13IK and Lenovo Yoga 910-13IKB. ChambersDesignInc.com has indexed 6 files for this board — 4 BIOS files, 1 schematic and 1 boardview.
Revisions seen in file names: 1.0. The BIOS dumps are 8 MB images. ODM project name: CYG50. The earliest file dates from February 2018 (BIOS Archive and Schematics & Boardviews Archive).
BIOS dumps 4
Schematics 1
Boardviews 1
Board facts
| Board number | NM-A901 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-A |
| ODM project | CYG50 |
| Revisions | 1.0 |
| BIOS chip size | 8 MB |
| Flash chip | 25Q64FV10 |
| First seen | 2018-02-17 |
| Source channels | BIOS Archive, Schematics & Boardviews 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-A901
- Lenovo Yoga 910 13IK
- Lenovo Yoga 910-13IKB
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 |
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| 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 |
Questions
Who designed the NM-A901 board?
NM-A901 is an LCFC board number used by Lenovo.
Which laptops use the NM-A901 board?
Files in the catalog link NM-A901 to the Lenovo Yoga 910 13IK and Lenovo Yoga 910-13IKB.
What BIOS chip size does NM-A901 use?
The BIOS images for NM-A901 are 8 MB. Flash chips named in the files: 25Q64FV10.
Is there a boardview for NM-A901?
Yes, 1 boardview file in .bdv 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.