Working BIOS image for the ASRock B550M Phantom Gaming 4 motherboard, revision 1.01, 16.0 MB with no file extension in the name. The OK tag suggests a dump confirmed to boot. A 16 MB size matches a 128 Mbit SPI chip, common on AM4 boards. Use it with an external programmer when a failed update leaves the board dead. Read the existing chip first to keep its MAC address and serial data, and confirm the board revision on the PCB before writing.
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 @bios_laptopomi. 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 →