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Lenovo ThinkPad T490 BIOS

BIOS Added: Apr 5, 2021 RAR · 10 MB

File details

TypeBIOS
BrandLenovo
ModelThinkPad T490
DeviceLaptop
FormatRAR
Size10 MB
AddedApril 5, 2021
Updated
Original file nameThinkPad_T490,_T590,_P53s,_P43s_BIOS_N2IET29W_FT490_FT492_FT590.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.

AwesomeHeader does not store this file. It was published in a public Telegram channel; the links above lead to the original post and its copies.

Description

BIOS dump for the Lenovo ThinkPad T490 laptop, supplied as a RAR archive of about 10.2 MB. The original file name lists related models (ThinkPad T590, P53s, P43s) and the BIOS version N2IET29W, so check the exact model and version against your machine before using it. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Save the original chip contents first, and confirm the board number and revision match your board before writing anything.

The catalog also lists 1 schematic and 5 BIOS dumps for the Lenovo ThinkPad T490.

Description generated from the catalog data. ·

How to open it

A BIOS dump is written to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and save the original chip contents twice before writing.

Guide: Flash a Laptop BIOS with a CH341A Programmer →

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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 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.

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