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Lenovo ThinkPad L440 12289-2 BIOS

BIOS 12289-2 Added: Sep 11, 2021 RAR · 3.4 MB

File details

TypeBIOS
BrandLenovo
ModelThinkPad L440
Board number12289-2
Board maker (ODM)Wistron
DeviceLaptop
FormatRAR
Size3.4 MB
BIOS chip size1 MB
AddedSeptember 11, 2021
Updated
Original file nameBIOS Lenovo ThinkPad L440 LOS-1 MB 12289-2 48.4LG01.021.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 L440 laptop, board number 12289-2 from Wistron, supplied for a 1 MB flash chip. The archive is about 3.4 MB and is named BIOS Lenovo ThinkPad L440 LOS-1 MB 12289-2 48.4LG01.021.rar, so the BIOS version string and board number are visible before you download. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update.

For board 12289-2 the catalog also has 4 BIOS dumps.

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 L440 12289-2. 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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