Skip to content

Apple A1311 820-2494 BIOS

BIOS 820-2494 Added: Dec 18, 2018 ZIP · 1.6 MB

File details

TypeBIOS
BrandApple
ModelA1311
Board number820-2494
Board maker (ODM)Apple
DeviceLaptop
FormatZIP
Size1.6 MB
AddedDecember 18, 2018
Updated
Original file nameAPPLE A1311 820-2494-А BIOS.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 A1311 laptop, board number 820-2494, supplied as a ZIP archive of about 1.6 MB under the original file name APPLE A1311 820-2494-А BIOS.ZIP. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after BIOS corruption or a failed update. Confirm that the board number and revision on your logic board match the file before flashing, and read out and save the original chip contents first so you can restore them if needed.

For board 820-2494 the catalog also has 2 schematics and 2 boardview files.

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 →

Browse more

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 A1311 820-2494. 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.

Report a dead link or request removal