Hallo,
today I used your tool to flash a MX25U6435F (Main BIOS of my Gigabyte J1900-D3V), which used to brocken with an updated BIOS (J190ND3V.F4). All "Probe", "Read", "Erease" and "Write" were successful.  Maybe someone could update the "Supported hardware" entry. Thanks for building the tool. Regards.