Apple MacBook Air A1466 firmware for logic board 820-00165, revision A, in an image marked 2.2 and 8GB, which likely refers to RAM configuration. The dump is described as clean with the password removed, used to clear a firmware lock that blocks booting from other drives. Apple 820 numbers are printed on the logic board and must match. Back up the original SPI chip before writing, since it holds board-specific data such as the serial number, and confirm the image size fits the flash 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 | 5 Nov 2018 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 28 Oct 2019 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →