diff --git a/devices/hi3518ev200_lite_qtech-qvc-ipc-136w/general/overlay/usr/sbin/qrscan.sh b/devices/hi3518ev200_lite_qtech-qvc-ipc-136w/general/overlay/usr/sbin/qrscan.sh
index 99338b1..66b3183 100755
--- a/devices/hi3518ev200_lite_qtech-qvc-ipc-136w/general/overlay/usr/sbin/qrscan.sh
+++ b/devices/hi3518ev200_lite_qtech-qvc-ipc-136w/general/overlay/usr/sbin/qrscan.sh
@@ -1,13 +1,14 @@
 #!/bin/sh
 
+gpio=1  # RED led, hi3518ev200_lite_switcam-hs303-v3
 n=0
 
-gpio clear 1 | logger -t gpio  # RED led, hi3518ev200_lite_switcam-hs303-v3
+gpio clear ${gpio} | logger -t gpio
 
 while true ; do
     if [ "$n" -ge 30 ]; then
         logger -t qrscan "Recognition timeout exceeded, reboot camera and try again..."
-        gpio set 1  | logger -t gpio
+        gpio set ${gpio} | logger -t gpio
         exit 1
     fi
     timeout 1 wget -q -O /tmp/image.jpg http://127.0.0.1/image.jpg
diff --git a/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/etc/fw_env.config b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/etc/fw_env.config
new file mode 100644
index 0000000..15bc133
--- /dev/null
+++ b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/etc/fw_env.config
@@ -0,0 +1 @@
+/dev/mtd1	0	0x10000	0x10000	0x1
diff --git a/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/etc/init.d/S97qrscan b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/etc/init.d/S97qrscan
new file mode 100755
index 0000000..7afc62a
--- /dev/null
+++ b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/etc/init.d/S97qrscan
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+case "$1" in
+	start)
+		qrscan.sh >/dev/null 2>&1 &
+		;;
+esac
diff --git a/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/etc/wireless/usb b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/etc/wireless/usb
deleted file mode 100755
index af13fce..0000000
--- a/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/etc/wireless/usb
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/bin/sh
-
-set_gpio() {
-	[ "$2" -eq 1 ] && gpio set $1 || gpio clear $1
-	sleep 1
-}
-
-if [ "$1" = "rtl8188eus-switcam-hs303v2" ]; then
-	gpio set 54
-        modprobe 8188eu
-        exit 0
-fi
-
-exit 1
diff --git a/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/lib/sounds/ready_48k.pcm b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/lib/sounds/ready_48k.pcm
new file mode 100644
index 0000000..d615825
Binary files /dev/null and b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/lib/sounds/ready_48k.pcm differ
diff --git a/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/sbin/qrscan.sh b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/sbin/qrscan.sh
new file mode 100755
index 0000000..e551de2
--- /dev/null
+++ b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/sbin/qrscan.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+gpio=?  # COLOR led, hi3518ev200_lite_switcam-hs303-v2
+n=0
+
+# gpio clear ${gpio} | logger -t gpio
+
+while true ; do
+    if [ "$n" -ge 30 ]; then
+        logger -t qrscan "Recognition timeout exceeded, reboot camera and try again..."
+#        gpio set ${gpio} | logger -t gpio
+        exit 1
+    fi
+    timeout 1 wget -q -O /tmp/image.jpg http://127.0.0.1/image.jpg
+    data=$(qrscan -p /tmp/image.jpg)
+    if [[ -n "$data" ]]; then
+        fw_setenv $(echo $data | cut -d " " -f 1 | sed 's/=/ /')
+        fw_setenv $(echo $data | cut -d " " -f 2 | sed 's/=/ /')
+        logger -t qrscan "Recognition successfully, wlanssid and wlanpass is writed to env. Reboot required."
+        curl --data-binary @/usr/lib/sounds/ready_48k.pcm http://localhost/play_audio
+        sleep 3
+        reboot -f
+    fi
+    sleep 1
+    n=$((n + 1))
+done
+
diff --git a/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/share/openipc/customizer.sh b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/share/openipc/customizer.sh
index f2ef295..8d53f14 100644
--- a/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/share/openipc/customizer.sh
+++ b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/share/openipc/customizer.sh
@@ -19,8 +19,8 @@ cli -s .video0.codec h264
 cli -s .video0.fps 20
 cli -s .audio.enabled true
 cli -s .audio.volume 40
-cli -s .audio.srate 8000
-cli -s .audio.codec alaw
+cli -s .audio.srate 48000
+cli -s .audio.codec opus
 cli -s .audio.outputEnabled true
 cli -s .audio.outputVolume 80
 cli -s .audio.speakerPin 53
diff --git a/devices/hi3518ev200_lite_switcam-hs303/general/overlay/etc/fw_env.config b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/etc/fw_env.config
new file mode 100644
index 0000000..15bc133
--- /dev/null
+++ b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/etc/fw_env.config
@@ -0,0 +1 @@
+/dev/mtd1	0	0x10000	0x10000	0x1
diff --git a/devices/hi3518ev200_lite_switcam-hs303/general/overlay/etc/init.d/S97qrscan b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/etc/init.d/S97qrscan
new file mode 100755
index 0000000..7afc62a
--- /dev/null
+++ b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/etc/init.d/S97qrscan
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+case "$1" in
+	start)
+		qrscan.sh >/dev/null 2>&1 &
+		;;
+esac
diff --git a/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/lib/sounds/ready_48k.pcm b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/lib/sounds/ready_48k.pcm
new file mode 100644
index 0000000..d615825
Binary files /dev/null and b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/lib/sounds/ready_48k.pcm differ
diff --git a/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/sbin/qrscan.sh b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/sbin/qrscan.sh
new file mode 100755
index 0000000..ca95d36
--- /dev/null
+++ b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/sbin/qrscan.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+gpio=?  # COLOR led, hi3518ev200_lite_switcam-hs303-v1
+n=0
+
+# gpio clear ${gpio} | logger -t gpio
+
+while true ; do
+    if [ "$n" -ge 30 ]; then
+        logger -t qrscan "Recognition timeout exceeded, reboot camera and try again..."
+#        gpio set ${gpio} | logger -t gpio
+        exit 1
+    fi
+    timeout 1 wget -q -O /tmp/image.jpg http://127.0.0.1/image.jpg
+    data=$(qrscan -p /tmp/image.jpg)
+    if [[ -n "$data" ]]; then
+        fw_setenv $(echo $data | cut -d " " -f 1 | sed 's/=/ /')
+        fw_setenv $(echo $data | cut -d " " -f 2 | sed 's/=/ /')
+        logger -t qrscan "Recognition successfully, wlanssid and wlanpass is writed to env. Reboot required."
+        curl --data-binary @/usr/lib/sounds/ready_48k.pcm http://localhost/play_audio
+        sleep 3
+        reboot -f
+    fi
+    sleep 1
+    n=$((n + 1))
+done
+
diff --git a/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/share/openipc/customizer.sh b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/share/openipc/customizer.sh
index fa74d97..9b27ec7 100644
--- a/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/share/openipc/customizer.sh
+++ b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/share/openipc/customizer.sh
@@ -20,8 +20,8 @@ cli -s .video0.codec h264
 cli -s .video0.fps 20
 cli -s .audio.enabled true
 cli -s .audio.volume 40
-cli -s .audio.srate 8000
-cli -s .audio.codec alaw
+cli -s .audio.srate 48000
+cli -s .audio.codec opus
 cli -s .audio.outputEnabled true
 cli -s .audio.outputVolume 80
 cli -s .audio.speakerPin 32