EFI firmware for an Apple MacBook Pro 15-inch, model A1286, from logic board 820-2915. Apple numbers its logic boards in the 820-xxxx format, and that number, not the retail model, decides which ROM fits. The RAR should contain a boot ROM image for the SPI flash, used when a Mac powers on but will not chime or boot. Read and keep the original first, since it holds serial and system data, and check the image size against 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 (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 16 Feb 2019 | Open file on RM Schematics |
| @afssolutions | 20 Feb 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 28 Oct 2019 | Open file on RM Schematics |
| @Laptopbiossolutions | 20 Sept 2023 | 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 →