BIOS (EFI firmware) dump for the Apple logic board 820-00165, described in the name as a working image. Apple uses 820-XXXXX numbers for its logic boards, and the number is printed on the PCB, so confirm it there before use. The 5.5 MB rar archive is suited to reprogramming the SPI ROM with a programmer on a board that will not boot. Dump and save the original chip first, because it holds the serial and system configuration, and verify that the image size matches the chip.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 30 May 2022 | Open file on RM Schematics |
| @fileservicelaptop | 13 Jun 2022 | Open file on RM Schematics |
| @fileservicelaptop | 13 Jun 2022 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →