Asrock motherboard keeps showing the 'Asrock Instant Flash' with "No BIOS file found."

To fix that:

1. Go to Asrock website and download the latest BIOS file of your motherboard.
2. Unzip the BIOS file and save the file to a USB stick.
3. Boot the computer then the 'Asrock Instant Flash' will show.
4. Select the USB Device from the right hand menu, then let it search for the BIOS file. Once found, press Enter to flash the BIOS, then wait to finish.
5. IMPORTANT: Shutdown the computer, unplug the power cable and let it seat for 10 minutes.
6. Switch the computer and that should be it.