EFI firmware dump for an Apple MacBook Air A1466 from early 2015, taken from an MX25L6473E flash chip, which is an 8 MB Macronix part. The name marks the image as cleared, which normally means the firmware lock or stored settings have been removed, and the archive is 3.83 MB. Technicians write such images with an SPI programmer to restore a Mac that shows a lock screen or a corrupted boot ROM. Back up the original chip first, because it holds the serial number and other machine-specific data you may need to restore.
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 | 4 Dec 2018 | Open file on RM Schematics |
| @biosarchive | 7 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 →