Working BIOS dump for the Positivo Q464C, packed into a 3.20 MB rar archive. The name carries no version, board revision or chip size, so check the contents and compare the image size with the SPI flash fitted on the board before writing. Repair technicians use such images to restore a unit that powers on without display or loops after firmware corruption, programming the chip with a CH341A or similar tool. Always read and store the existing chip contents first, then verify after writing to confirm a clean transfer.
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 →