BMWQ1 BMWQ2 NM-A481 REV 1.0 2015-07-22 CLR ME TESTED OK
BIOSTested
4.4 MB · first posted in BIOS Archive
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BMWQ1 BMWQ2 NM-A481 REV 1.0 2015-07-22 CLR ME TESTED OK
What the file name tells us
| Brand | Lenovo |
|---|---|
| Board | NM-A481 |
| ODM project | BMWQ1, BMWQ2 |
| ODM | LCFC |
| Revision | 1.0 |
| Kind | BIOS, ME region |
| Format | .rar |
| Date in file name | 2015-07-22 |
| Archive size | 4.4 MB |
| First posted | 2023-09-04 |
| Channel | BIOS Archive |
| Notes | tested by uploader |
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.
A 'clean ME' image has the Intel Management Engine region reset, so the dump can be moved to another board of the same model; the board's own serial and DMI data still need to be restored.
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-A481
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Lenovo Ideapad 300-15ISK NM-A481 r0.3 PDF
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1.9 MB
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