I formated a pen drive with the fat 32 went to
http://www.asus.com/Motherboards/MAXIMUS_VI_HERO/HelpDesk_Download/ and downlaoded the latest bios 1603. Extracted the MAXIMUS-HERO-VI-ASUS1603.cap folder to there as well as placed that file outside the foler.
I did not rename the file as u suggested because I would not know what to rename it to. That and I do remmeber that I never had to do it that way when I updated the bios before from within the bios.
Stuck the pen drive in a usb port in the back that had a highlighted white box which is located right below the highlighted BIOS flashback button.
held thta down till it started flashing blue
waited for the red sensor to go off in the middle of the mobo indicating that it was finished as stated in the manual
The red light never went off.