A BIOS / firmware dump for Acer hardware. Shared as “Acer Extensa 5220 Columbia 48.4T301.01N” — a .01n file, 1.00 MB.
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 @abgm_manutencao_bios. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →