Apple 820-2993 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Apple |
| Board number | 820-2993 |
| Board maker (ODM) | Apple |
| Device | Laptop |
| Format | RAR |
| Size | 3.8 MB |
| BIOS chip size | 8 MB |
| Added | December 5, 2023 |
| Updated | |
| Original file name | BIOS 820-2993-A_HM65_MX25L6405.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 820-2993-A_HM65_MX25L6405 BIOS dump for the Apple laptop board 820-2993, supplied as a RAR archive of about 3.8 MB and sized for an 8 MB flash chip. The original file name, BIOS 820-2993-A_HM65_MX25L6405, is kept here for reference. Technicians use a dump like this to reprogram the SPI flash with a programmer after a corrupted BIOS or a failed update. Confirm that the board number and revision on your logic board match the file before writing anything, and back up the chip's original contents first so you can recover if something goes wrong.
The catalog also lists 1 schematic and 1 BIOS dump for board 820-2993.
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 820-2993. 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.