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Lenovo G475 BIOS

BIOS Added: Jul 9, 2025 RAR · 1 MB

File details

TypeBIOS
BrandLenovo
ModelG475
DeviceLaptop
FormatRAR
Size1 MB
BIOS chip size2 MB
AddedJuly 9, 2025
Updated
Original file nameLENOVO G475 41CN21WW(V1.07) 2MB .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

From the original post:
LENOVO G475 41CN21WW(V1.07) 2MB

BIOS dump for the Lenovo G475 laptop, version 41CN21WW (V1.07), provided for a 2 MB SPI flash chip. The archive is a RAR file of about 1 MB. Technicians use a dump like this to reprogram the flash chip with a programmer after a corrupted BIOS or a failed update. Before writing anything, confirm that your machine matches this model and BIOS version, and read the original chip contents to back them up first. The file name carries the version string, so compare it with what your board currently reports or with the label on your chip.

For the Lenovo G475 the catalog also has 3 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 G475. 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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