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Lenovo CIH55C BIOS

BIOS Added: Dec 29, 2025 RAR · 2.9 MB

File details

TypeBIOS
BrandLenovo
ModelCIH55C
DeviceLaptop
FormatRAR
Size2.9 MB
BIOS chip size8 MB
AddedDecember 29, 2025
Updated
Original file nameLENOVO CIH55C V1.0 8MB BIOS.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 CIH55C V1.0 8MB BIOS

BIOS dump for the Lenovo CIH55C laptop, supplied for an 8 MB SPI flash chip and packed as a RAR archive of about 2.9 MB. The original file name references version V1.0. 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 model and board details match your laptop before flashing, and read out and save the original chip contents first so you have a way back if something goes wrong.

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 CIH55C. 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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