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Lenovo Yoga C640 DA0LF3MB8F0 BIOS

BIOS DA0LF3MB8F0 Added: Nov 24, 2021 RAR · 6.3 MB

File details

TypeBIOS
BrandLenovo
ModelYoga C640
Board numberDA0LF3MB8F0
Board maker (ODM)Quanta
RevisionF
DeviceLaptop
FormatRAR
Size6.3 MB
BIOS chip size16 MB
Markstested by uploader
AddedNovember 24, 2021
Updated
Original file nameLENOVO YOGA C640 DA0LF3MB8F0 REV F 16MB_CLEAR CSME.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:
TESTED AND CONFIRM

BIOS dump for the Lenovo Yoga C640 laptop, board DA0LF3MB8F0 (Quanta ODM), revision F, prepared for a 16 MB SPI flash chip and marked by the uploader as tested. The file name also indicates a cleaned CSME region. Technicians use a dump like this to reprogram the flash chip with a programmer after a corrupted BIOS or a failed update. Confirm that the board number and revision on your motherboard match before flashing, and read out and save the original chip contents first so you can restore them if needed.

For board DA0LF3MB8F0 the catalog also has 1 BIOS dump.

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 Yoga C640 DA0LF3MB8F0. 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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