Apple 820-2577 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Apple |
| Board number | 820-2577 |
| Board maker (ODM) | Apple |
| Device | Laptop |
| Format | RAR |
| Size | 2.6 MB |
| Added | April 25, 2021 |
| Updated | |
| Original file name | APPLE (820-2577-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.
Description
BIOS dump for the Apple laptop board 820-2577, supplied as the archive APPLE (820-2577-A).rar, roughly 2.6 MB. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after a corrupted firmware image or a failed update. Before writing anything, confirm that the board number on your PCB matches 820-2577 and back up the original chip contents so you can restore them if needed. The facts available for this file do not list a chip size, revision or other flags, so check those against your own board first.
For board 820-2577 the catalog also has 2 BIOS dumps.
Description generated from the catalog data. ·
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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 820-2577. 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.