Hi all. I'm French person, so i'm sorry if my English not correct. I have a Toshiba C855-21Q. I ran a bios update and the flash fails. So i wan't to unbrick it and use SPI Flash with a Raspberry Pi and Flashrom (the chip is a Windbond W25Q32BVSIG). Wiring is ok, the chip is detect and flashrom can read, erase and write the chip. But i have problem, when i get the bios update, extract it. I have to files one for Win 7 platform an another one for Win 8 platform. The laptop is under Win 8 (UEFI i think). So i take the Bios file (fd extension) for Win 8 but the file size is 6MB or the bios chip is 4MB (32 Megabit). How can i flash this file. Thank you for your help. Sincerely. Tomvosges.