LENOVO T470 CT470 NM A931 REV 2 0 2016 10 2816MB & 1MB & MEC BIOS
BIOSEC1 MB
14.8 MB · first posted in BIOS Archive
Get on TelegramWhat the file name tells us
| Brand | Lenovo |
|---|---|
| Model | Lenovo ThinkPad T470 |
| Board | NM-A931 |
| ODM project | CT470 |
| ODM | LCFC |
| Revision | 2.0 |
| Kind | BIOS, EC |
| Format | .rar |
| Chip size | 1 MB |
| Archive size | 14.8 MB |
| First posted | 2025-07-17 |
| Channel | BIOS Archive |
Parsed automatically from the file name and caption. Always compare the board number with the one printed on your board.
What this kind of file is 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.
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 |
|---|---|---|
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Other files for NM-A931
FileSizeRevAddedSource
Lenovo T470 (CT470 NM-A931 Rev.2.0)
Schematic
2.0 MB
2.0
Get on Telegram Schematics & Boardviews Archive +1 more
LENOVO T470 NM A931 REV2 0 8MB & 1MB U15 U49 WORKING BIOS 100%
BIOS1 MB, 8 MBTested
7.4 MB
2.0
Get on Telegram BIOS Archive
CT470 NM-A931 REV 2.0 2018-10-20 16MB & 1MB BIOS
BIOS1 MB, 16 MB
8.7 MB
2.0
Get on Telegram BIOS Archive