I remember that some time ago I had read a post (about Gyga Motherboard), about another way to bios recover but I can not find the post . I remember something like a short circuit btween two main bios pins while power on the motherboard. Anyway, I can not find this post, I am not sure about the correct process and no idea if this procedure will help in this specific motherboard.
Pins 1 and 6 on the main bios chip. Pin 1 is marked with an arrow, the rest of the numbering goes clockwise around the chip (pin 8 is across from pin 1). This is possibly the page you're referring to.
I had to restore the backup bios on my quo-aos last night actually, which is how I came across this post. What you'll want to do is seat a stick of RAM in the slot nearest the CPU, Press the power button to turn on, release and immediate press and hold the power button until the computer shuts down. Press the power button again to start, the bios restoration process should start. This is Method 1 on the page I linked above.