Apple 820-2901 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Apple |
| Board number | 820-2901 |
| Board maker (ODM) | Apple |
| Device | Laptop |
| Format | RAR |
| Size | 2.4 MB |
| Marks | tested by uploader |
| Added | June 22, 2023 |
| Updated | |
| Original file name | 820-2901-A WORKING BIOS 100%.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
820-2901-A WORKING BIOS 100% BIOS dump for an Apple laptop logic board, board number 820-2901 (original file name 820-2901-A WORKING BIOS 100%.rar, about 2.4 MB, RAR format). The uploader marks it as tested, but the catalog does not verify this, so treat that claim as the uploader's own. A BIOS dump like this is used to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update.
For board 820-2901 the catalog also has 1 schematic and 1 boardview file.
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 820-2901. 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.