Archived BIOS for a board with platform code LZ57 and number 10290-2, a Wistron-style numbering, carrying the 48.4PA01.021 board identifier and marked as a working UMA build. UMA means integrated graphics only, so it should not be used on a version of the board with a discrete GPU. The name reports the image as working. Extract the zip and check the image size against the flash chip before programming it. Compare the board number and revision printed on the PCB and save the original chip contents first.
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 .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 →