ZIP archive holding a BIOS binary with the uninformative name buildsss, which states no model, board or version. Its 6.16 MB compressed size matches the GH4FT 1.09 package elsewhere in this collection, which hints at a related build, but that is not confirmed. Extract it and inspect the image, for example with a UEFI tool, before writing it to a flash chip with a programmer. Back up the original chip and confirm the image size matches its capacity.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →