Boot ROM firmware for the Apple MacBook Pro A1226 on logic board 820-2101-A, packed as a 1.33 MB ZIP. Apple numbers its logic boards as 820-xxxx with a revision letter, and the suffix A here marks the revision. Such a dump is used to reprogram the SPI flash on a board that powers on but does not chime or boot. Check that the 820 number printed on the board matches, read and save the original chip first, and confirm the image size fits the flash part fitted.
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 | 23 Feb 2017 | 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 →