Lenovo L540 12290-2 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | L540 |
| Board number | 12290-2 |
| Board maker (ODM) | Wistron |
| Device | Laptop |
| Format | RAR |
| Size | 3.6 MB |
| BIOS chip size | 1 MB |
| Added | October 18, 2021 |
| Updated | |
| Original file name | BIOS LENOVO L540 LPD-1 MB 12290-2.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 L540 laptop, board number 12290-2 from Wistron, supplied for a 1 MB flash chip. The archive is a RAR file of about 3.6 MB, named BIOS LENOVO L540 LPD-1 MB 12290-2.rar. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after BIOS corruption or a failed update. Before writing anything, confirm that the board number on your PCB matches 12290-2 and save a full backup of the original chip contents, so you can restore it if the new image does not behave as expected.
Description generated from the catalog data. ·
Related files
Browse more
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 L540 12290-2. 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.