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Acer A5WAH LA-B991P BIOS (REV 1.0)

BIOS LA-B991P Added: May 29, 2022 RAR · 4 MB

File details

TypeBIOS
BrandAcer
ModelA5WAH
Board numberLA-B991P
Board maker (ODM)Compal
Revision1.0
DeviceLaptop
FormatRAR
Size4 MB
AddedMay 29, 2022
Updated
Original file nameACER A5WAH LA-B991P REV 1.0 2014-08-27 VGA 840M.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

From the original post:
ACER A5WAH LA-B991P REV 1.0 2014-08-27 VGA 840M

BIOS dump for the Acer A5WAH laptop, board LA-B991P revision 1.0, from ODM Compal. The archive is a RAR of about 4 MB. Technicians use a 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 LA-B991P rev 1.0, and back up the original chip contents so you can restore them if needed.

For board LA-B991P the catalog also has 2 schematics, 1 boardview file, and 10 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: Acer A5WAH LA-B991P. 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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