Apple 820-00923-A 820-00923 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Apple |
| Model | 820-00923-A |
| Board number | 820-00923 |
| Board maker (ODM) | Apple |
| Device | Laptop |
| Format | RAR |
| Size | 4.3 MB |
| Marks | clean ME |
| Added | May 11, 2021 |
| Updated | |
| Original file name | Apple 820-00923 (820-00923-A) CLEAR ME.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 820-00923-A laptop board, board number 820-00923, supplied with the Intel ME region cleaned. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Before flashing, confirm that the board number and revision on your logic board match the file, and save a backup of the original chip contents. The archive is listed as Apple 820-00923 (820-00923-A) CLEAR ME.rar, about 4.3 MB.
For board 820-00923 the catalog also has 4 schematics, 4 boardview files, and 4 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 820-00923-A 820-00923. 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.