Lenovo FX490 NM-B861 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Board number | NM-B861 |
| Platform | FX490 |
| Board maker (ODM) | Compal |
| Revision | 1.0 |
| Device | Laptop |
| Format | RAR |
| Size | 26 MB |
| BIOS chip size | 32 MB |
| Marks | tested by uploader |
| Added | May 22, 2023 |
| Updated | |
| Original file name | LENOVO_THINKPAD_X1_CARBON_TYPE_20QD_0020CD_FX490_NM_B861_REV_1_0.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 X1 CARBON TYPE 20QD-0020CD FX490 NM-B861 REV 1.0 32MB WORKING BIOS 100% BIOS dump for the Lenovo NM-B861 laptop board, platform FX490, built by Compal and listed as revision 1.0. It is sized for a 32 MB flash chip and was marked as tested by the uploader, though that claim comes from the uploader and has not been verified here. The original file name also refers to the ThinkPad X1 Carbon Type 20QD-0020CD. A dump like this is used to reprogram the SPI flash with a programmer after a corrupted BIOS or failed update.
The catalog also lists 2 schematics and 6 BIOS dumps for board NM-B861.
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 FX490 NM-B861. 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.