820-00923-05
BIOS.bin
4.9 MB · first posted in BIOS Archive
Get on TelegramWhat the file name tells us
| Brand | Apple |
|---|---|
| Board | 820-00923 |
| Kind | BIOS |
| Format | .zip, .bin |
| Archive size | 4.9 MB |
| First posted | 2022-09-11 |
| Channel | BIOS Archive |
Parsed automatically from the file name and caption. Always compare the board number with the one printed on your board.
What this kind of file is for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
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