I would like to thank you for development of the flashrom tool, as I was able to fix my bios via the tool. 

The chip I have is gigadevice GD25B128C and I was able to use the settings for GD25Q128C.

The software informed me that reading or writing to this chip wasn't tested so I thought it would help to inform you that both functions worked for me.

Sencirely,

Omer basri