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Lenovo B50-70 ZIWE1 LA-B091P BIOS (REV 2.0)

BIOS LA-B091P Added: Apr 16, 2023 RAR · 6.1 MB

File details

TypeBIOS
BrandLenovo
ModelB50-70
Board numberLA-B091P
PlatformZIWE1
Board maker (ODM)Compal
Revision2.0
DeviceLaptop
FormatRAR
Size6.1 MB
Markstested by uploader
AddedApril 16, 2023
Updated
Original file nameLENOVO_B50_70_B40_70_ZIW2B_ZIWB3_ZIWE1_LA_B091P_REV_2_0_2014_09.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 B50-70 B40-70 ZIW2B ZIWB3 ZIWE1 LA-B091P REV 2.0 2014-09-12 i5-5200U WORKING BIOS 100%

BIOS dump for the Lenovo B50-70 laptop, board LA-B091P revision 2.0, built by Compal on the ZIWE1 platform. The uploader marks it as tested, though that is their claim and not something the catalog has checked. 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 writing anything, confirm that the board number and revision match your board, and save the original chip contents as a backup. The archive is in RAR format.

For board LA-B091P the catalog also has 4 schematics, 2 boardview files, and 20 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 B50-70 ZIWE1 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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