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
index ca95d36..ff2d68c 100755
--- a/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/sbin/qrscan.sh
+++ b/devices/hi3518ev200_lite_switcam-hs303/general/overlay/usr/sbin/qrscan.sh
@@ -1,14 +1,14 @@
 #!/bin/sh
 
-gpio=?  # COLOR led, hi3518ev200_lite_switcam-hs303-v1
+gpio=34  # BLUE led, hi3518ev200_lite_switcam-hs303-v1
 n=0
 
-# gpio clear ${gpio} | logger -t gpio
+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
+        gpio set ${gpio} | logger -t gpio
         exit 1
     fi
     timeout 1 wget -q -O /tmp/image.jpg http://127.0.0.1/image.jpg