diff --git a/SD_ROOT/wz_mini/bin/iwlist b/SD_ROOT/wz_mini/bin/iwlist
index 723e273..3ccd29c 100644
--- a/SD_ROOT/wz_mini/bin/iwlist
+++ b/SD_ROOT/wz_mini/bin/iwlist
@@ -1,12 +1,12 @@
 #!/bin/sh
 
 #On the V2, for some reason iCamera runs "sh -c iwlist wlan0 scan | grep 'ESSID:"<your wifi ssid>"' every 5 seconds.
-#Let's fake the output to reduce load
+#Let's fake the output, and increase put some sleep in to increase the "scan" times to every xx seconds to reduce load
 
 ssid=$(cat /tmp/wpa_supplicant.conf | grep "ssid=\""  | cut -d'"' -f 2)
 
 echo -e "                    ESSID:\""$ssid"\"\n"
 
-sleep 30
+sleep 60
 
 exit 0
diff --git a/SD_ROOT/wz_mini/etc/init.d/v3_init.sh b/SD_ROOT/wz_mini/etc/init.d/v3_init.sh
index bdcb93e..615aebf 100644
--- a/SD_ROOT/wz_mini/etc/init.d/v3_init.sh
+++ b/SD_ROOT/wz_mini/etc/init.d/v3_init.sh
@@ -23,11 +23,9 @@ set -x
 
 #test for v2
 mount -t jffs2 /dev/mtdblock9 /params
-
 if cat /params/config/.product_config | grep WYZEC1-JZ; then
         V2="true"
 fi
-umount /params
 
 mount --bind /opt/wz_mini/bin/busybox /bin/busybox
 
diff --git a/SD_ROOT/wz_mini/etc/init.d/v3_post.sh b/SD_ROOT/wz_mini/etc/init.d/v3_post.sh
index 7b3eca5..e3f7a78 100755
--- a/SD_ROOT/wz_mini/etc/init.d/v3_post.sh
+++ b/SD_ROOT/wz_mini/etc/init.d/v3_post.sh
@@ -12,9 +12,13 @@ echo "PID $$"
 echo "mount kernel modules"
 mount --bind /opt/wz_mini/lib/modules /lib/modules
 
+if cat /params/config/.product_config | grep WYZEC1-JZ; then
+        V2="true"
+fi
+
 if [[ $(cat /opt/wz_mini/run_mmc.sh | grep "RTSP_HI_RES_ENABLED\=") == "RTSP_HI_RES_ENABLED\=\"true\"" ]] ||  [[ $(cat /opt/wz_mini/run_mmc.sh | grep "RTSP_LOW_RES_ENABLED\=") == "RTSP_LOW_RES_ENABLED\=\"true\"" ]] && ! [[ -e /tmp/dbgflag ]]; then
 	if [[ $(cat /opt/wz_mini/run_mmc.sh | grep "RTSP_LOW_RES_ENABLED\=") == "RTSP_LOW_RES_ENABLED\=\"true\"" ]] && [[ $(cat /opt/wz_mini/run_mmc.sh | grep "RTSP_HI_RES_ENABLED\=") == "RTSP_HI_RES_ENABLED\=\"true\"" ]]; then
-	        if [[ -d /etc/hotplug ]]; then
+	        if [[ "$V2" == "true"]]; then
 		        echo "load video loopback driver at video6 video7"
 		        insmod /opt/wz_mini/lib/modules/3.10.14_v2/kernel/v4l2loopback_V2.ko video_nr=6,7
 		else
@@ -22,7 +26,7 @@ if [[ $(cat /opt/wz_mini/run_mmc.sh | grep "RTSP_HI_RES_ENABLED\=") == "RTSP_HI_
 		        insmod /opt/wz_mini/lib/modules/3.10.14__isvp_swan_1.0__/kernel/v4l2loopback.ko video_nr=1,2
 		fi
 	elif [[ $(cat /opt/wz_mini/run_mmc.sh | grep "RTSP_LOW_RES_ENABLED\=") == "RTSP_LOW_RES_ENABLED\=\"true\"" ]]; then
-	        if [[ -d /etc/hotplug ]]; then
+	        if [[ "$V2" == "true"]]; then
 		        echo "load video loopback driver at video7"
 		        insmod /opt/wz_mini/lib/modules/3.10.14_v2/kernel/v4l2loopback_V2.ko video_nr=7
 		else
@@ -30,7 +34,7 @@ if [[ $(cat /opt/wz_mini/run_mmc.sh | grep "RTSP_HI_RES_ENABLED\=") == "RTSP_HI_
 	        	insmod /opt/wz_mini/lib/modules/3.10.14__isvp_swan_1.0__/kernel/v4l2loopback.ko video_nr=2
 		fi
 	elif [[ $(cat /opt/wz_mini/run_mmc.sh | grep "RTSP_HI_RES_ENABLED\=") == "RTSP_HI_RES_ENABLED\=\"true\"" ]]; then
-	        if [[ -d /etc/hotplug ]]; then
+	        if [[ "$V2" == "true"]]; then
 		        echo "load video loopback driver at video6"
 		        insmod /opt/wz_mini/lib/modules/3.10.14_v2/kernel/v4l2loopback_V2.ko video_nr=6
 		else
diff --git a/SD_ROOT/wz_mini/usr/bin/iCamera b/SD_ROOT/wz_mini/usr/bin/iCamera
index c3c3e78..425cffa 100755
--- a/SD_ROOT/wz_mini/usr/bin/iCamera
+++ b/SD_ROOT/wz_mini/usr/bin/iCamera
@@ -6,4 +6,7 @@ echo "inject callback library and run"
 
 export LD_LIBRARY_PATH='/thirdlib:/system/lib:/opt/wz_mini/lib'
 
-LD_PRELOAD='libcallback.so:libtinyalsa.so.2.0.0:libsetunbuf.so' /opt/wz_mini/tmp/.storage/iCamera
+#libcallback has setunbuf built-in
+#LD_PRELOAD='libcallback.so:libtinyalsa.so.2.0.0:libsetunbuf.so' /opt/wz_mini/tmp/.storage/iCamera
+
+LD_PRELOAD='libcallback.so:libtinyalsa.so.2.0.0' /opt/wz_mini/tmp/.storage/iCamera
diff --git a/SD_ROOT/wz_mini/usr/bin/watch_up.sh b/SD_ROOT/wz_mini/usr/bin/watch_up.sh
index e086057..1ad2bc8 100755
--- a/SD_ROOT/wz_mini/usr/bin/watch_up.sh
+++ b/SD_ROOT/wz_mini/usr/bin/watch_up.sh
@@ -17,8 +17,7 @@ set -x
 	if cat /params/config/.product_config | grep WYZEC1-JZ; then
 	while [ ! -f /tmp/Upgrade/upgraderun.sh ]
 	do
-		sed -i '/pgrep/,+4d' /tmp/Upgrade/upgraderun.sh
-		find /tmp/Upgrade > /opt/upgrade_find.log &
+	#	sed -i '/pgrep/,+4d' /tmp/Upgrade/upgraderun.sh
 		sleep 0.1
 	done
 
@@ -55,7 +54,7 @@ set -x
 		sed -i '/wc -c $KERNEL/,+14d' $upgrade_path
 		#mv /tmp/Upgrade/upgraderun.sh /tmp/Upgrade/run_upg.sh
 		#sh /tmp/Upgrade/run_upg.sh
-		/tmp/Upgrade/system_upgrade.sh
+		#/tmp/Upgrade/system_upgrade.sh
 	else
 
 		if [[ -e /tmp/Upgrade/app ]]; then