Lenovo W540 12291-2 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | W540 |
| Board number | 12291-2 |
| Board maker (ODM) | Wistron |
| Device | Laptop |
| Format | ZIP |
| Size | 6.7 MB |
| Marks | tested by uploader |
| Added | September 23, 2021 |
| Updated | |
| Original file name | Lenovo_W540_LKM_1_WS_MB_12291_2_48_4L013_021_Working_BIOS_Dumps.zip |
Where to get the file
Opens the matching file on RM Schematics, or its source details if it is not catalogued there yet.
Alternative links
No other copies are known yet.
Description
BIOS dump for the Lenovo W540 laptop, Wistron board number 12291-2, supplied as a ZIP archive of about 6.7 MB and marked as tested by the uploader. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Before flashing, confirm that the board number and revision on your motherboard match the file, and save the original chip contents as a backup. The "tested" mark comes from the uploader and has not been verified by this catalog.
The catalog also lists 1 schematic, 2 boardview files, and 8 BIOS dumps for board 12291-2.
Description generated from the catalog data. ·
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Questions about this file
How do I flash this BIOS dump?
Write it to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and keep the original contents first, and check that the chip size matches the dump.
Will this BIOS work on my board?
Only if the board number and revision match: Lenovo W540 12291-2. Dumps from a different board or revision can leave the board dead.
What does “clean ME” mean?
The Intel ME region in the dump has been reset, so it can be used on another board of the same model. Keep your original dump and transfer serial numbers if needed.