BIOS package for the ASRock B550M Phantom Gaming 4 motherboard, firmware version 3.46, sized for a 16 MB flash chip. Board and version both come from the archive name, so verify the exact model printed on the PCB before use. The image can be written with a CH341A or similar SPI programmer to revive a board left dead by a failed update, or with the vendor flashing tool. Save the existing chip contents first and make sure the image is exactly 16 MB before flashing.
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 →