NM-B112 – Lenovo IdeaPad 110 15AST
The Lenovo IdeaPad 110 15AST and Lenovo IdeaPad CG512 are built on the NM-B112 board designed by LCFC. 4 files are indexed for this board: 3 BIOS files, 1 schematic and 1 EC firmware image.
Revisions seen in file names: 1.0. ODM project name: CG512. First posted in December 2021 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 3
Schematics 1
Board facts
| Board number | NM-B112 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-B |
| ODM project | CG512 |
| Revisions | 1.0 |
| First seen | 2021-12-13 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| 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-B112
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.
EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .7z | 7-Zip archive | 7-Zip or WinRAR |
| 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-B112?
No boardview has been indexed for NM-B112 yet; the schematic is available on this page.
Which laptops use the NM-B112 board?
Files in the catalog link NM-B112 to the Lenovo IdeaPad 110 15AST and Lenovo IdeaPad CG512.
Who designed the NM-B112 board?
NM-B112 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.