Asus ROG STRIX B550-F GAMING WI-FI [46/66] Chapter 2

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Chapter 2: Basic Installation

Chapter 2

BIOS FlashBack™ button BIOS FlashBack™ port

2.2 BIOS update utility

BIOS FlashBack™

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

is marked on the I/O shield) then press the BIOS FlashBack™ button for three seconds to

automatically update the BIOS.

To use BIOS FlashBack™:

1. Insert a USB storage device to the BIOS FlashBack™ port.

We recommend you to use a USB 2.0 storage device to save the latest BIOS version for

better compatibility and stability.

2. Visit https://www.asus.com/support/ and download the latest BIOS version for this

motherboard.

3. Manually rename the file as RB550FGW.CAP, or launch the BIOSRenamer.exe

application to automatically rename the file, then copy it to your USB storage device.

The BIOSRenamer.exe application is zipped together with your BIOS file when you

download a BIOS file for a BIOS FlashBack™ compatible motherboard.

4. Shut down your computer.

5. Press the BIOS FlashBack™ button for three seconds until the BIOS FlashBack™

LED blinks three times, indicating that the BIOS FlashBack™ function is enabled.

6. Wait until the light goes out, indicating that the BIOS updating process is completed.

For more BIOS update utilities in BIOS setup, refer to the section Updating BIOS in

Chapter 3.

• Do not unplug portable disk, power system, or short the CLRTC header 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.