Lenovo ThinkPad T490 BIOS (4 MB)
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | ThinkPad T490 |
| Device | Laptop |
| Format | RAR |
| Size | 10 MB |
| BIOS chip size | 4 MB |
| Added | April 24, 2026 |
| Updated | |
| Original file name | Lenovo Thinkpad T490 Type (20N3) (N2IETA0P) (1) PF1W2L4M..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 T490 laptop, supplied for a 4 MB flash chip in a RAR archive of about 10 MB. The file name references Type (20N3) and the BIOS version string N2IETA0P, so match those against the label on your machine before use. Technicians use a dump like this to reprogram the SPI flash with a programmer after BIOS corruption or a failed update. Back up the original chip contents first, and confirm the model and type number are an exact match before writing anything.
For the Lenovo ThinkPad T490 the catalog also has 1 schematic and 5 BIOS dumps.
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 ThinkPad T490. 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.