Apple MacBook Air A1466 firmware, 2012 Core i5 version, packed in a ZIP of about 4.6 MB. Technicians use such a dump to reprogram the EFI flash chip when a logic board fails to boot or carries a corrupted image. No logic board number appears in the name, so check that the board itself matches the 2012 A1466 before flashing. Back up the existing chip contents first to preserve the serial number and other system data, and confirm the image fits the chip size.
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 | 20 Oct 2018 | 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 →