Always backup your original flash contents before writing. A wrong SPI mode (Dual/Quad) can soft-brick your BIOS.

: The interface may appear frozen during long read/write operations; you must wait for the console to finish.

Click on the “Detect” button. The new version’s detection algorithm is significantly faster. If the chip ID returns 0xEF4017 , the software recognizes it as Winbond W25Q64.