ROM dump of the T2 security chip firmware for the Apple MacBook Pro 16-inch A2141 with logic board 820-01700, in a 6.89 MB RAR. Apple uses the 820- prefix for logic board numbers. Such an image is used when the T2 SPI flash is corrupted or replaced, and it is written with a programmer to bring the board back to a DFU-restorable state. Read and save the original chip first, confirm the 820-01700 number on the board, and check that the image size matches the 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 →