An 8 MB firmware dump labelled A1465, Apple's model number for the 11-inch MacBook Air, noted as having a BIOS lock, which on Macs usually means an EFI firmware password is set in the image. The name does not give the 820 board number, so the specific logic board generation must be confirmed from the PCB. Technicians use locked dumps as a reference or starting point for unlocking work; reflashing the SPI ROM needs a programmer. Save the original ROM before writing, as it holds the unit serial.
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 @lappysan. 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 →