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Apple MacBook 15 A1286 820-2533 BIOS

BIOS 820-2533 Added: Jan 16, 2021 RAR · 1.3 MB

File details

TypeBIOS
BrandApple
ModelMacBook 15 A1286
Board number820-2533
Board maker (ODM)Apple
DeviceLaptop
FormatRAR
Size1.3 MB
AddedJanuary 16, 2021
Updated
Original file nameBIOS Apple MacBook 15 A1286 820-2533-A.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 Apple MacBook 15 A1286 laptop, board number 820-2533, with the original file name BIOS Apple MacBook 15 A1286 820-2533-A.rar. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after BIOS corruption or a failed update. Before writing anything, confirm that the board number and revision on your logic board match the file, and save a full backup of the original chip contents so you can restore it if needed. The archive is about 1.3 MB in size.

The catalog also lists 3 schematics, 1 boardview file, and 1 BIOS dump for board 820-2533.

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: Apple MacBook 15 A1286 820-2533. 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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