Firmware image read from position UB260 on the Apple logic board 820-01949-07 used in the A2251 MacBook, delivered as a 1.00 MB binary. The 820 prefix is Apple's board numbering, with -07 marking the revision. Such a dump allows a technician to restore a replaced or corrupted chip at that designator using an external programmer. Confirm the chip location and the board number on the PCB first, save the existing contents before writing, and note that serial and security-linked data may not transfer cleanly between boards.
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 @laptexlaptopbios. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →