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Lenovo GS450 GS750 NM-C821 BIOS

BIOS NM-C821 Added: Jun 23, 2021 ZIP · 5.5 MB

File details

TypeBIOS
BrandLenovo
ModelGS450
Board numberNM-C821
PlatformGS750
Board maker (ODM)Compal
Revision1.0
DeviceLaptop
FormatZIP
Size5.5 MB
AddedJune 23, 2021
Updated
Original file nameLENOVO GS450 GS550 GS750 NM-C821 (REV 1.0).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 GS450 laptop, board number NM-C821, revision 1.0, with platform GS750 and Compal as the ODM. The archive is a ZIP of about 5.5 MB, named LENOVO GS450 GS550 GS750 NM-C821 (REV 1.0).zip. A dump like this is used to reprogram the SPI flash chip with a programmer after BIOS corruption or a failed update. Before flashing, confirm that the board number and revision on your motherboard match NM-C821 and 1.0, and back up the original chip contents so you can restore them if needed.

For board NM-C821 the catalog also has 3 schematics, 4 boardview files, and 5 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 GS450 GS750 NM-C821. 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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