$ sdb -d root on
$ sdb -d shell

1. #rpm -ivh --force camera-firmware-s5k6a3-0.0.7-2.1.armv7l.rpm
2. #rpm -ivh --force mmfw-sysconf-cleansdk-e4x12-0.1.64-0.armv7l.rpm
3. # vi /etc/config/model-config.xml
	(in line 12, change camera.front's value 'false' to 'true')
	<key name="tizen.org/feature/camera.front" type="bool">true</key>

4. # rm /opt/usr/etc/system_info_cache.ini
5. reboot
