diff --git a/phytium-ota/fitImage/6.6/fitImage.tar b/phytium-ota/fitImage/6.6/fitImage.tar
index d77c9f0dd7335567329e1beef844c45b470cbb30..5160948ba009219957d000265fc93efd1ab6ee08 100644
Binary files a/phytium-ota/fitImage/6.6/fitImage.tar and b/phytium-ota/fitImage/6.6/fitImage.tar differ
diff --git a/phytium-ota/rootfs/debian11/rootfs.tar b/phytium-ota/rootfs/debian11/rootfs.tar
index ddb9fb5dd9695e251ee8a90eec7b11ba719b7e4d..bb2ede369a925ed8eefc9488b02615681be8f02e 100644
Binary files a/phytium-ota/rootfs/debian11/rootfs.tar and b/phytium-ota/rootfs/debian11/rootfs.tar differ
diff --git a/phytium-ota/rootfs/debian12/rootfs.tar b/phytium-ota/rootfs/debian12/rootfs.tar
index a4581884b889bd66831553db00d314ae676f9b91..2a1e1586c688a35994e29ecf34149059e78ccfd6 100644
Binary files a/phytium-ota/rootfs/debian12/rootfs.tar and b/phytium-ota/rootfs/debian12/rootfs.tar differ
diff --git a/phytium-ota/scripts/rootfs_ota b/phytium-ota/scripts/rootfs_ota
index bfed52282461425ed72b708082b1b7ea25dd5892..649bb1525427df2d4f30601e8d39571085798d36 100755
--- a/phytium-ota/scripts/rootfs_ota
+++ b/phytium-ota/scripts/rootfs_ota
@@ -9,8 +9,12 @@
 
 
 install_and_remove_packages() {
-        apt install -y locales audacity jq network-manager libglib2.0-dev libxext-dev libxv-dev ffmpeg
+        apt update
+        apt install -y locales audacity jq network-manager libglib2.0-dev libxext-dev libxv-dev ffmpeg dkms
         apt remove -y dhcpcd5 arctica-greeter plymouth
+	# remove the linux-headers installed when installing dkms
+        dpkg -l | grep linux-headers | cut -d ' ' -f3 | xargs dpkg --purge
+        dpkg -l | grep linux-kbuild | cut -d ' ' -f3 | xargs dpkg --purge
 } # install_and_remove_package
 
 # $1: debian11 or debian12
@@ -22,19 +26,19 @@ rootfs_configure() {
         sed -i 's/^default-sink = alsa_output.platform-sound.stereo-fallback/#&/' "/etc/pulse/client.conf"
         # set kernel loglevel
         sed -i 's/^#kernel.printk = 3 4 1 3/kernel.printk = 4 4 1 7/' "/etc/sysctl.d/99-sysctl.conf"
-        # set the name of the sound output devices
+        # set the name and default sink of the sound output devices
         if ! grep -q '^update-sink-proplist 0 device.description=HDMI' "/etc/pulse/default.pa"; then
                 echo 'update-sink-proplist 0 device.description=HDMI'  >> "/etc/pulse/default.pa"
         fi
-	if [[  "$1" == "debian12" ]]; then
-		Phytiumpios_version="V2.1"
-		if ! grep -q '^update-sink-proplist 1 device.description=Headphone' "/etc/pulse/default.pa"; then
-			echo 'update-sink-proplist 1 device.description=Headphone' >> "/etc/pulse/default.pa"
-		fi
-		if ! grep -q '^set-default-sink 1' "/etc/pulse/default.pa"; then
+	if ! grep -q '^update-sink-proplist 1 device.description=Headphone' "/etc/pulse/default.pa"; then
+                        echo 'update-sink-proplist 1 device.description=Headphone' >> "/etc/pulse/default.pa"
+        fi
+	if ! grep -q '^set-default-sink 1' "/etc/pulse/default.pa"; then
                         echo 'set-default-sink 1' >> "/etc/pulse/default.pa"
-                fi
-		sed -i 's/^load-module module-switch-on-connect/#&/' "/etc/pulse/default.pa"
+        fi
+
+	if [[  "$1" == "debian12" ]]; then
+		Phytiumpios_version="V2.2"
 		# alsa UCM
 		rm -rf /usr/share/alsa/ucm2/conf.d/PMDK-I2S/
 		rm -rf /usr/share/alsa/ucm2/conf.d/simple-card/
@@ -45,18 +49,15 @@ rootfs_configure() {
 		sed -i '/^NAME=="", ENV{ID_NET_NAME}!="", NAME="$env{ID_NET_NAME}"/s/^/#/' /lib/udev/rules.d/80-net-setup-link.rules
 		# set default greeter to lightdm-gtk-greeter
  		sed -i "s/^greeter-session=arctica-greeter/greeter-session=lightdm-gtk-greeter/" /etc/lightdm/lightdm.conf
+		# add packages for gstreamer
+		for pkg in libgstreamer1.0-0 gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-pulseaudio gstreamer1.0-tools; do
+			DEBIAN_FRONTEND=noninteractive apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" install $pkg || exit 1 
+		done
+
 	elif [[ "$1" == "debian11" ]]; then
 		Phytiumpios_version="V1.7"
 		# rootfs-chown
  		systemctl enable systemd-rootfs-chown.service
-		# set the name of the sound output devices
-		sed -i 's/^update-sink-proplist 1 device.description=Headphone/#&/' "/etc/pulse/default.pa"
-		sed -i 's/^set-default-sink 1/#&/' "/etc/pulse/default.pa"
-		if ! grep -q '^^load-module module-switch-on-connect' "/etc/pulse/default.pa"; then
-                        echo '^load-module module-switch-on-connect' >> "/etc/pulse/default.pa"
-                fi
-		# phytium-vpu
-		systemctl enable phytium-vpu.service
 		# set default greeter to lightdm-gtk-greeter
 		sed -i "s/^greeter-session=ukui-greeter/greeter-session=lightdm-gtk-greeter/" /etc/lightdm/lightdm.conf
 	fi
diff --git a/phytium-ota/scripts/run_phytium_ota b/phytium-ota/scripts/run_phytium_ota
index 671585593d72ffa895f2859740ecd1b368a11699..e491629e5f474c39086730c90b5f4b7b43611535 100755
--- a/phytium-ota/scripts/run_phytium_ota
+++ b/phytium-ota/scripts/run_phytium_ota
@@ -44,8 +44,6 @@ fi
 
 # $1: debian11 or debian12
 update_rootfs() {
-	# apt install dkms for phytium-vpu.deb
-	apt install -y dkms
 	rootfs_latest=$($dest_dir/scripts/check-latest $dest_dir/rootfs/$distro rootfs)
 	if [ "${rootfs_latest}" = "latest" ]; then
 		echo -e "\033[1;32mrootfs is already latest, nothing to do...\033[0m"
@@ -54,7 +52,6 @@ update_rootfs() {
 		echo -e "\033[1;32mcheck hash...\033[0m"
 		check-hash $dest_dir/rootfs/$distro/phytium-desktop-tools.deb.hash $dest_dir/rootfs/$distro/phytium-desktop-tools.deb phytium-desktop-tools.deb
 		check-hash $dest_dir/rootfs/$distro/phytium-firstlogin.deb.hash $dest_dir/rootfs/$distro/phytium-firstlogin.deb phytium-firstlogin.deb
-		check-hash $dest_dir/rootfs/$distro/phytium-vpu.deb.hash $dest_dir/rootfs/$distro/phytium-vpu.deb phytium-vpu.deb
 		check-hash $dest_dir/rootfs/$distro/phytium-zram.deb.hash $dest_dir/rootfs/$distro/phytium-zram.deb phytium-zram.deb
 		check-hash $dest_dir/rootfs/$distro/phytium-tools.deb.hash $dest_dir/rootfs/$distro/phytium-tools.deb phytium-tools.deb
 		check-hash $dest_dir/rootfs/$distro/lscpu.hash $dest_dir/rootfs/$distro/lscpu lscpu
@@ -65,7 +62,6 @@ update_rootfs() {
 		cp -f $dest_dir/rootfs/$distro/lscpu /usr/bin/
 		dpkg -i --force-overwrite $dest_dir/rootfs/$distro/phytium-desktop-tools.deb
 		dpkg -i $dest_dir/rootfs/$distro/phytium-firstlogin.deb
-		dpkg -i $dest_dir/rootfs/$distro/phytium-vpu.deb
 		dpkg -i $dest_dir/rootfs/$distro/phytium-zram.deb
 		dpkg -i $dest_dir/rootfs/$distro/phytium-tools.deb
 		if [[ $distro == "debian11" ]]; then
@@ -116,8 +112,8 @@ update_system() {
 
 	if [ "$1" == "all" ]; then
 		update_uboot
-		update_kernel
 		update_rootfs $distro
+		update_kernel
 	elif [ "$1" == "uboot" ]; then	
 		update_uboot
 		#the default uboot is hw v3, mem 4g and pcie usb3, so it is necessary to config firmware if the hardware is not the default.