Bios Update Utility - Asus X99-A II User Manual

2.2

BIOS update utility

USB BIOS Flashback
USB BIOS Flashback allows you to easily update the BIOS without entering the existing
BIOS or operating system. Simply insert a USB storage device to the USB port (the USB port
hole marked in green on the I/O shield) then press the USB BIOS Flashback button for three
seconds to automatically update the BIOS.
To use USB BIOS Flashback:
1. Place the bundled support DVD to the optical drive and install the USB BIOS
Flashback Wizard. Follow the onscreen instructions to complete the installation.
2. Insert the USB storage device to the USB Flashback port.
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3. Launch the USB BIOS Flashback Wizard to automatically download the latest BIOS
version.
4. Shut down your computer.
5. Press the BIOS Flashback button for three seconds until the Flashback LED begins to
blink, indicating that the BIOS Flashback function is enabled, then release.
BIOS Flashback button
6. Wait until the LED goes out, indicating that the BIOS updating process is completed.
For more BIOS update utilities in BIOS setup, refer to the section 3.11 Updating BIOS in
Chapter 3.
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We recommend you to use a USB 2.0 storage device to save the latest BIOS version
for better compatibility and stability.
Refer to section 2.3.1 Rear I/O connection for the location of the USB port that
supports USB BIOS Flashback.
Do not unplug portable disk, power system, or press the CLR_CMOS button while
BIOS update is ongoing, otherwise update will be interrupted. In case of interruption,
please follow the steps again.
If the light flashes for five seconds and turns into a solid light, this means that
the BIOS Flashback is not operating properly. This may be caused by improper
installation of the USB storage device and filename/file format error. If this scenario
happens, please restart the system to turn off the light.
Updating BIOS may have risks. If the BIOS program is damaged during the process
and results to the system's failure to boot up, please contact your local ASUS Service
Center.
USB BIOS Flashback port
Chapter 2: Basic Installation