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You may not like this answer, but this is an extract of what I read about Q Flash: "Once you are done backing up, return to the previous menu and select “Update BIOS from Drive” and locate the BIOS file you downloaded. Press enter to start flashing. WARNING: Do not switch off your computer while flashing your BIOS. This may permanently corrupt your mainboard!"
I would suggest that you contact the manufacturer and send the board in for repair.