Lenovo ThinkPad L490 FL590 NM-B931 BIOS (REV 1.0, 1 MB)
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | ThinkPad L490 |
| Board number | NM-B931 |
| Platform | FL590 |
| Board maker (ODM) | Compal |
| Revision | 1.0 |
| Device | Laptop |
| Format | RAR |
| Size | 13 MB |
| BIOS chip size | 1 MB |
| Added | February 22, 2025 |
| Updated | |
| Original file name | THINKPAD_L490_FL490_FL590_NM_B931_REV_1_0_2019_03_15_3MB_&_1MB_BIOS.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
THINKPAD L490 FL490 FL590 NM-B931 REV 1.0 2019-03-15 3MB & 1MB BIOS BIOS dump for the Lenovo ThinkPad L490 laptop, board NM-B931 revision 1.0 (platform FL590, Compal ODM), supplied in a RAR archive of about 12.9 MB with a 1 MB flash chip image. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Before writing anything, confirm that the board number and revision match your motherboard, and save a backup of the original chip contents so you can recover if the new image does not behave as expected.
For board NM-B931 the catalog also has 1 schematic, 1 boardview file, and 6 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 L490 FL590 NM-B931. 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.