EFI firmware image for an Apple MacBook Pro A1278, and the name mentions the HM65 chipset, which places it on a Sandy Bridge era board. The wd in the name is not explained. At 8 MB it matches a full SPI flash dump suitable for writing with an external programmer. Technicians use it when a MacBook will not chime or boot due to corrupted firmware. Check the logic board 820 number, back up the original chip, and restore the machine serial and related data if needed.
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 @jdbiosworld. Enginerys does not host this file.
All sources (10)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @jdbiosworld | 1 Oct 2020 | Open file on RM Schematics |
| @biosbin | 1 Oct 2020 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
| @jdbiosworld | 24 Dec 2020 | Open file on RM Schematics |
| @abgm_manutencao_bios | 17 Feb 2021 | Open file on RM Schematics |
| @abgm_manutencao_bios | 23 Oct 2021 | Open file on RM Schematics |
| @generalbios | 22 Sept 2023 | Open file on RM Schematics |
| @generalbios | 25 Sept 2023 | Open file on RM Schematics |
| @generalbios | 26 Sept 2023 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 28 Apr 2025 | Open file on RM Schematics |
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →