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Apple A1278 820-2936 BIOS (clean ME)

BIOS 820-2936 Added: Apr 5, 2021 ZIP · 4 MB

File details

TypeBIOS
BrandApple
ModelA1278
Board number820-2936
Board maker (ODM)Apple
DeviceLaptop
FormatZIP
Size4 MB
Marksclean ME
AddedApril 5, 2021
Updated
Original file nameAPPLE A1278 820-2936-B MC375LL MACBOOK PRO 7.1 CLEAR ME.zip

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 A1278 laptop, board number 820-2936, supplied as a ZIP archive of about 4 MB with the Intel ME region cleaned. The original file name references revision B and model MC375LL, MacBook Pro 7.1, so check that the printed board number and revision on your logic board match before using it. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after BIOS corruption or a failed update.

For board 820-2936 the catalog also has 6 schematics and 15 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: Apple A1278 820-2936. 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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