16 MB BIOS image labelled u366 Unpass, which suggests a dump from chip location U366 with the BIOS password removed. The device and brand are not stated, so the target board must be identified independently. Images like this are flashed to a 128 Mbit SPI chip with an external programmer to clear a supervisor password lock. Back up the original chip first, because it holds serial numbers and system data, and make sure the board and chip match 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 @vinafix_bios. 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 →