EFI firmware dump for the Apple A1369 MacBook Air, EMC 2469, logic board 820-3023-A, where the A suffix marks the board revision. The 3.68 MB rar holds an image for the SPI flash chip, written with a programmer such as a CH341A or RT809H. Use it when a corrupted ROM leaves the board without chime or video. Read the original chip first, since it holds the machine serial and other unique data. Confirm the 820 number and revision on the PCB before writing.
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 (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 30 Jan 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 28 Oct 2019 | 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 →