NM-E021 – Lenovo ThinkBook 15P Gen 2
The Lenovo ThinkBook 15P Gen 2 is built on the NM-E021 board designed by LCFC. The catalog lists 5 files for it: 2 BIOS files, 1 schematic and 2 boardviews.
Revisions seen in file names: 1.0. The BIOS dumps are 1 MB, 2 MB, 8 MB and 16 MB images. ODM project name: HY520. The earliest file dates from September 2023 (Cyberlan Electronics, Schematics & Boardviews Archive and BIOS Archive).
BIOS dumps 2
Schematics 1
Boardviews 2
Board facts
| Board number | NM-E021 |
|---|---|
| Designed by | LCFC |
| Platform group | NM-E |
| ODM project | HY520 |
| Revisions | 1.0 |
| BIOS chip size | 1 MB, 2 MB, 8 MB, 16 MB |
| CPU generation | Intel 11th gen |
| First seen | 2023-09-18 |
| Source channels | Cyberlan Electronics, Schematics & Boardviews Archive, BIOS Archive, Boardview Schematics |
| 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-E021
- Lenovo ThinkBook 15P Gen 2
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 |
|---|---|---|
| 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
Who designed the NM-E021 board?
NM-E021 is an LCFC board number used by Lenovo.
Which laptops use the NM-E021 board?
Files in the catalog link NM-E021 to the Lenovo ThinkBook 15P Gen 2.
What BIOS chip size does NM-E021 use?
The BIOS images for NM-E021 are 1 MB, 2 MB, 8 MB and 16 MB.
Is there a boardview for NM-E021?
Yes, 2 boardview files.
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.