Zipped binary of 4.96 MB for the Apple A1398 2015 logic board 820-00163-A with a Macronix 25L6473E flash; the BF tag in the name is not explained and may denote a modified or prepared version, so treat it with care. Images like this are written with an SPI programmer to bring back boards with damaged EFI. Before flashing, read the existing chip twice and compare the results, keep that backup, and confirm the board revision matches so that serial and configuration data can be restored if missing.</description>
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 .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 →