Firmware backup for a model labelled n82jv, saved as a 4.00 MB .bak file, which is a raw chip image with a backup extension. The name marks the read as risky, so treat the contents as unverified: the dump may have been taken from a failing chip or through a poor clip connection. A 4 MB image matches a 32 Mbit SPI flash. Rename it to .bin if your programmer software needs that, check the header and padding in a hex editor, and keep your own original read before flashing.
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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →