Asus A55BM-A USB3 User Manual page 34

Booting the system in DOS environment
1. Insert the DOS-bootable USB flash drive with the latest BIOS file and BIOS Updater to
your computer's USB port.
Boot your computer. When the ASUS Logo appears, press <F8> to show the BIOS
2.
Boot Device Select Menu.
3. Select the USB flash drive as the boot device. The DOS screen appears.
Updating the BIOS file
To update the BIOS file using BIOS Updater:
1. At the FreeDOS prompt, type bupdater /pc /g and press <Enter>.
2. The BIOS Updater screen appears as below.
BOARD:
VER:
DATE:
2-4
ASUSTek BIOS Updater for DOS V1.30
A55BM-A/USB3
0301
07/03/2013
A55BMAU3.CAP 4194304 2013-07-08 17:30:48
Chapter 2: Getting started