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 | 12 MB |
| BIOS chip size | 1 MB |
| Added | February 7, 2022 |
| Updated | |
| Original file name | THINKPAD_L490_FL490_FL590_NM_B931_REV_1_0_2019_03_15_32_MB_&_1MB.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 L490 laptop, board number NM-B931, revision 1.0, platform FL590, built by Compal. The chip size listed is 1 MB, and the file arrives as a RAR archive of about 12.2 MB. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS 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 can restore them if something goes wrong.
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.