Lenovo ThinkPad L540 12290-1M BIOS (1 MB)
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | ThinkPad L540 |
| Board number | 12290-1M |
| Board maker (ODM) | Wistron |
| Device | Laptop |
| Format | RAR |
| Size | 3.4 MB |
| BIOS chip size | 1 MB |
| Added | October 18, 2021 |
| Updated | |
| Original file name | BIOS_Lenovo_ThinkPad_L540_Wistron_LPD_1_12290_1M_48_4LH01_01M_MX25L6473E.rar |
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 ThinkPad L540 laptop, Wistron board number 12290-1M, supplied as a RAR archive of about 3.4 MB with a 1 MB flash chip size. The original file name also references the MX25L6473E chip, which is useful for matching your part before you start. A dump like this is used to reprogram the SPI flash with a programmer after a corrupted BIOS or a failed update. Confirm that the board number and revision on your motherboard match the file, and read and save the original chip contents before writing anything.
The catalog also lists 2 BIOS dumps for board 12290-1M.
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 ThinkPad L540 12290-1M. 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.