Firmware dumps for the Positivo ZK3010, named after chip positions U2 and U15, packed in a 3.12 MB RAR. The name suggests two separate images, one for each flash device at those reference designators, for example a BIOS chip and an EC or second memory, though it does not say which is which. Find U2 and U15 on the board, read each original with an SPI programmer and save copies before writing. Compare each file size against the chip capacity so that every image goes to the correct location.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →