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Lenovo B50-80 LA-B091P BIOS (REV 2.0)

BIOS LA-B091P Added: Sep 13, 2017 RAR · 4.3 MB

File details

TypeBIOS
BrandLenovo
ModelB50-80
Board numberLA-B091P
Board maker (ODM)Compal
Revision2.0
DeviceLaptop
FormatRAR
Size4.3 MB
Marksincludes EC firmware
AddedSeptember 13, 2017
Updated
Original file nameLenovo B50-80 LA-B091P Rev 2.0-BIOS&EC(IO).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

BIOS dump for the Lenovo B50-80 laptop, Compal board LA-B091P, PCB revision 2.0, packaged as a RAR archive of about 4.3 MB. The archive includes EC/KBC firmware alongside the BIOS image, so both can be taken from one file. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update, and the EC firmware is relevant when the keyboard controller needs reflashing too.

The catalog also lists 4 schematics, 2 boardview files, and 20 BIOS dumps for board LA-B091P.

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 B50-80 LA-B091P. 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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