820-3747-A Rev;1.3
biosbin.zip
biosbin.zip
About this board
Files for motherboard 820-3747-A.
This listing is for revision 1.3; another revision of the same board can need a different file.
Files usually needed for this board
- EFI firmware (full SPI ROM dump)
- Schematic (PDF)
- Boardview (.brd / .bdv / .cad)
Usually needed after a failed firmware update, for EFI password removal, or when the board powers on but never shows the Apple logo.
Back up the original dump first — it contains machine-specific data (serial, UUID, MAC, ME), and you will want it if anything goes wrong.
If you have a working file for this board, please share it below. More files: search 820-3747-A in File Finder.
Attachments
820-3787.rar
4.5 MB · Views: 2
4.5 MB · Views: 2
