Firmware archive for the MacBook Pro A1706, EMC 3163, with Apple logic board 820-00923-A. Apple marks its logic boards with 820- part numbers on the PCB, and the A1706 and EMC codes identify the exact model on the bottom case. These machines have a T1 chip, so a dumped EFI image may not cover every security component. Check the 820 number before flashing, read and keep the original chip contents, and make sure the image matches the capacity of the SPI flash.
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.
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 →