Sixteen-megabyte firmware image named only U366, likely the reference designator of the chip it was read from, with no model, brand or board stated. Its size matches a 128 Mbit SPI flash. Because the origin is not given, inspect the content in a hex or UEFI editor for platform identifiers and compare with the board you are repairing. Save the original contents of the target chip before writing, and verify after programming to catch bad contact or protection issues.
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 @biosfilebins. 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 →