A BIOS / firmware dump for Acer hardware (board 06237-3M). Shared as “ASPIRE 4420 (06237-3M BIWA MB).BIN” — a .bin 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 @BiosSchematicWorld. 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.
CH341A + NeoProgrammer / AsProgrammerflashromRT809F / RT809HTL866II / T48UEFITool (to inspect)HxD (hex editor)
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →