BIOS / EFI firmware for the Apple MacBook Pro 13 A1708, model identifier EMC 3164 written in the name as ECM3154, logic board 820-00840 revision A, in a 4.51 MB RAR. Apple marks logic boards with 820-xxxxx numbers, which must match the one printed on the PCB. The image is meant for flashing the SPI boot ROM with a programmer to fix no boot or firmware corruption. Back up the original chip, which stores serial numbers, and ensure the dump size matches the flash capacity.
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 (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 23 Sept 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 28 Oct 2019 | Open file on RM Schematics |
| @biositechyangiyer | 19 May 2020 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
| @biosdumpcomputer | 25 May 2022 | 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 →