BIOS for the Acer Swift SF314-57G on the NB8511 board, PCB version V4, marked WEB, suggesting an image derived from the official update rather than a dump from a working unit. The 5.79 MB ZIP can be prepared for writing to the SPI chip with a programmer. Web-derived images may need to be built into a full flash image of the correct size before writing. Back up the original chip, and confirm the board reads NB8511 V4.
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 @biosarchive. 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 →