Asus ROG STRIX B550-I GAMING Manual page 48

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2-16
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.
Chapter 2: Basic Installation