A BIOS / firmware dump (board 12298-2). Shared as “X1版号LMQ MB 12298-2 I54代CPU”, 8.00 MB.
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 @ShareMan_Electronic_Files. 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 →