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Lenovo G4850 12206-1 BIOS

BIOS 12206-1 Added: Nov 28, 2022 RAR · 9.3 MB

File details

TypeBIOS
BrandLenovo
ModelG4850
Board number12206-1
Board maker (ODM)Wistron
DeviceLaptop
FormatRAR
Size9.3 MB
Markstested by uploader
AddedNovember 28, 2022
Updated
Original file nameLENOVO_G4850_G580_LG4858L_UMA_MB_12206_1_48_4WQ02_011_WORKING_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 G4850 G580 LG4858L UMA MB 12206-1 48.4WQ02.011 WORKING BIOS 100%

BIOS dump for the Lenovo G4850 laptop, board number 12206-1 from Wistron, packaged as a 9.3 MB RAR archive. The uploader marked it as tested. 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 motherboard match the file, and back up the original chip contents so you can recover if the write goes wrong.

For board 12206-1 the catalog also has 2 schematics, 1 boardview file, 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 G4850 12206-1. 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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