LENOVO G50-75M ACLU7-ACLU8 NM-A291 Rev1.0 BIOS & EC
BIOSEC.bin
2.3 MB · first posted in BIOS Archive
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LENOVO G50-75M ACLU7-ACLU8 NM-A291 Rev1.0 BIOS & EC .bin
What the file name tells us
| Brand | Lenovo |
|---|---|
| Model | Lenovo G50-75M |
| Board | NM-A291 |
| ODM project | ACLU7, ACLU8 |
| ODM | LCFC |
| Revision | 1.0 |
| Kind | BIOS, EC |
| Format | .rar, .bin |
| Archive size | 2.3 MB |
| First posted | 2024-10-05 |
| 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 | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Other files for NM-A291
FileSizeRevAddedSource
ACLU7 ACLU8 NM-A291 r0.1 0925 r0.1 1216 G50-70M
Schematic.pdf
1.5 MB
0.1
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