NM-A804 – Lenovo IdeaPad 110
The Lenovo IdeaPad 110 and Lenovo IdeaPad 110-15IBR are built on the NM-A804 board designed by LCFC. 6 files are indexed for this board: 4 BIOS files, 1 schematic, 1 boardview and 2 EC firmware images.
Revisions seen in file names: 1.0 and 0.1. ODM project names: CG250 and CG520. The earliest file dates from September 2017 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 4
Schematics 1
Boardviews 1
Board facts
| Board number | NM-A804 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-A |
| ODM project | CG250, CG520 |
| Revisions | 1.0, 0.1 |
| First seen | 2017-09-11 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics, BIOS Files |
| 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-A804
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 |
|---|---|---|
| .7z | 7-Zip archive | 7-Zip or WinRAR |
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| .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
Who designed the NM-A804 board?
NM-A804 is an LCFC board number used by Lenovo.
Is there a boardview for NM-A804?
Yes, 1 boardview file in .bdv format.
Which laptops use the NM-A804 board?
Files in the catalog link NM-A804 to the Lenovo IdeaPad 110 and Lenovo IdeaPad 110-15IBR.
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.