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Dell Latitude 5420 GDF40 LA-K491P BIOS (REV 2.0)

BIOS LA-K491P Added: Jun 6, 2022 RAR · 11 MB

File details

TypeBIOS
BrandDell
ModelLatitude 5420
Board numberLA-K491P
PlatformGDF40
Board maker (ODM)Compal
Revision2.0
DeviceLaptop
FormatRAR
Size11 MB
Marksunlocked
AddedJune 6, 2022
Updated
Original file nameDell_Latitude_5420_Main_GDF40_LA_K491P_rev_2_0_unlock,_confirmed.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

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 Dell Latitude 5420 laptop, board LA-K491P revision 2.0, built on the GDF40 platform with Compal as the ODM. The file is marked unlocked and is supplied as a RAR archive of about 10.7 MB. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Before flashing, confirm that the board number and revision on your board match the file, and back up the original chip contents so you can recover if something goes wrong.

The catalog also lists 1 schematic, 1 boardview file, and 8 BIOS dumps for board LA-K491P.

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: Dell Latitude 5420 GDF40 LA-K491P. 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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