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Lenovo CIG41S BIOS

BIOS Added: Nov 15, 2021 ZIP · 0.5 MB

File details

TypeBIOS
BrandLenovo
ModelCIG41S
Revision1.2
DeviceLaptop
FormatZIP
Size0.5 MB
BIOS chip size1 MB
Marksincludes EC firmware
AddedNovember 15, 2021
Updated
Original file nameLENOVO CIG41S (VER 1.2) 1MB BIOS & EC.zip

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 CIG41S laptop, revision 1.2, supplied for a 1 MB flash chip and including EC/KBC firmware, packaged as a ZIP archive of about 0.5 MB. A dump like this is used to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update, and the EC/KBC firmware is included alongside it. Before writing anything, confirm that the board number and revision match your own board, and back up the original chip contents so you can recover if the new image does not behave as expected.

The catalog also lists 1 schematic for the Lenovo CIG41S.

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 CIG41S. 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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