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 | ZIP |
| Size | 3.5 MB |
| BIOS chip size | 1 MB |
| Added | October 18, 2021 |
| Updated | |
| Original file name | BIOS THINKPAD L540 MX25L6473E_12290-1M.BIN.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 ThinkPad L540 laptop, board number 12290-1M from Wistron, with a 1 MB flash chip. The archive is a ZIP of about 3.5 MB and the original file name references an MX25L6473E chip. Technicians use a dump like this to reprogram the SPI flash with a programmer after BIOS corruption or a failed update. Confirm that the board number and revision on your motherboard match before flashing, and read out and save the original chip contents first so you have a way back if the write goes wrong.
For board 12290-1M the catalog also has 2 BIOS dumps.
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.