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 | 7.4 MB |
| BIOS chip size | 1 MB |
| Marks | tested by uploader |
| Added | June 12, 2024 |
| Updated | |
| Original file name | LENOVO_THINKPAD_L540_LPD_1_12290_1M_48_4LH01_01M_WORKING_BIOS_100%.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
LENOVO THINKPAD L540 LPD-1 12290-1M 48.4LH01.01M WORKING BIOS 100% BIOS dump for the Lenovo ThinkPad L540 laptop, board number 12290-1M from Wistron, with a 1 MB chip size and a RAR archive of about 7.4 MB. The uploader marked it as tested and working. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update.
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.