diff --git a/ppp_installer/install.sh b/ppp_installer/install.sh
old mode 100644
new mode 100755
index 5ba4f50..c83d52d
--- a/ppp_installer/install.sh
+++ b/ppp_installer/install.sh
@@ -8,17 +8,19 @@ SET='\033[0m'
 echo "${YELLOW}Please choose your Sixfab Shield:${SET}"
 echo "${YELLOW}1: GSM/GPRS Shield${SET}"
 echo "${YELLOW}2: 3G, 4G/LTE Base Shield${SET}"
-echo "${YELLOW}3: Cellular IoT Shield${SET}"
+echo "${YELLOW}3: Cellular IoT App Shield${SET}"
+echo "${YELLOW}4: Cellular IoT HAT${SET}"
 
 read answer
 case $answer in
     1)    echo "${YELLOW}You chose GSM/GPRS Shield${SET}";;
     2)    echo "${YELLOW}You chose Base Shield${SET}";;
-    3)    echo "${YELLOW}You chose Cellular Iot Shield${SET}";;
-    *)    echo "${YELLOW}You did not chose 1, 2 or 3${SET}"; exit 1;
+    3)    echo "${YELLOW}You chose CellularIoT Shield${SET}";;
+    4)    echo "${YELLOW}You chose CellularIoT HAT${SET}";;
+    *)    echo "${YELLOW}You did not chose 1, 2,3 or 4${SET}"; exit 1;
 esac
 
-if [ $answer -eq 3 ]; then
+if [ $answer -eq 3 || $answer -eq 4 ]; then
 	echo "${YELLOW}Please choose LTE Technology:${SET}"
 	echo "${YELLOW}1: GPRS/EDGE${SET}"
 	echo "${YELLOW}2: CATM1${SET}"
@@ -139,8 +141,11 @@ do
 				
 			  elif [ $answer -eq 3 ]; then 
 			  
-				wget --no-check-certificate  https://raw.githubusercontent.com/sixfab/Sixfab_PPP_Installer/master/ppp_installer/reconnect_cellulariot -O reconnect.sh
+				wget --no-check-certificate  https://raw.githubusercontent.com/sixfab/Sixfab_PPP_Installer/master/ppp_installer/reconnect_cellulariot_app -O reconnect.sh
 			  
+			  elif [ $answer -eq 4 ]; then 
+			  
+				wget --no-check-certificate  https://raw.githubusercontent.com/sixfab/Sixfab_PPP_Installer/master/ppp_installer/reconnect_cellulariot -O reconnect.sh
 			  fi
 			  
 			  mv reconnect.sh /usr/src/
diff --git a/ppp_installer/reconnect_cellulariot b/ppp_installer/reconnect_cellulariot
index 330fa0b..96737f4 100644
--- a/ppp_installer/reconnect_cellulariot
+++ b/ppp_installer/reconnect_cellulariot
@@ -1,22 +1,22 @@
 #!/bin/sh
 
-gpio -g mode 20 in
-gpio -g mode 11 out
-gpio -g mode 26 out
+gpio -g mode 23 in	#status
+gpio -g mode 24 out	#powerkey
+gpio -g mode 17 out	#enable
 
-gpio -g write 26 0
+gpio -g write 17 1
 sleep 1
-gpio -g write 26 1
+gpio -g write 17 0
 
 while true; do
 
-	if [ $(gpio -g read 20) = "1" ]; then
+	if [ $(gpio -g read 23) = "0" ]; then
 		echo "Power up"
 
-		gpio -g write 11 0
-		gpio -g write 11 1
+		gpio -g write 24 0
+		gpio -g write 24 1
 		sleep 2
-		gpio -g write 11 0
+		gpio -g write 24 0
 		sleep 2
 	else
 		ping -I ppp0 -c 1 8.8.8.8
diff --git a/ppp_installer/reconnect_cellulariot_app b/ppp_installer/reconnect_cellulariot_app
new file mode 100644
index 0000000..330fa0b
--- /dev/null
+++ b/ppp_installer/reconnect_cellulariot_app
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+gpio -g mode 20 in
+gpio -g mode 11 out
+gpio -g mode 26 out
+
+gpio -g write 26 0
+sleep 1
+gpio -g write 26 1
+
+while true; do
+
+	if [ $(gpio -g read 20) = "1" ]; then
+		echo "Power up"
+
+		gpio -g write 11 0
+		gpio -g write 11 1
+		sleep 2
+		gpio -g write 11 0
+		sleep 2
+	else
+		ping -I ppp0 -c 1 8.8.8.8
+
+		if [ $? -eq 0 ]; then
+			echo "Connection up, reconnect not required..."
+		else
+			echo "Connection down, reconnecting..."
+			sudo pon
+		fi
+	fi
+
+	sleep 1
+done