Lenovo T490S FX390 NM-B891 BIOS (REV 2.0)
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | T490S |
| Board number | NM-B891 |
| Platform | FX390 |
| Board maker (ODM) | Compal |
| Revision | 2.0 |
| Device | Laptop |
| Format | RAR |
| Size | 16 MB |
| Marks | tested by uploader |
| Added | January 8, 2023 |
| Updated | |
| Original file name | LENOVO_T490S_FT491_FX390_NM_B891_REV_2_0_2019_01_28_i7_8565U_WORKING.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 T490S FT491 FX390 NM-B891 REV 2.0 2019-01-28 i7-8565U WORKING BIOS 100% BIOS dump for the Lenovo T490S laptop, board number NM-B891 revision 2.0, platform FX390 with Compal as the ODM. The uploader marked it as tested, and the archive is a RAR of about 15.6 MB. Technicians use a dump like this to reprogram the SPI flash 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 back up the original chip contents first. The caption also mentions an i7-8565U, but that is the uploader's note and was not checked here.
For board NM-B891 the catalog also has 1 schematic, 1 boardview file, and 11 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 T490S FX390 NM-B891. 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.