diff --git a/MPI3508-show b/MPI3508-show
index aafbe34..cf26cd3 100755
--- a/MPI3508-show
+++ b/MPI3508-show
@@ -2,13 +2,16 @@
 sudo ./system_backup.sh
 
 hw_version=`tr -d '\0' < /proc/device-tree/model`
-root_dev=`grep -oPr "root=[^\s]*" /boot/cmdline.txt | awk -F= '{printf $NF}'`
-if test "$root_dev" = "/dev/mmcblk0p7";then
-sudo cp -rf ./boot/config-noobs-nomal.txt ./boot/config.txt.bak
-else
-sudo cp -rf ./boot/config-nomal.txt ./boot/config.txt.bak
+#root_dev=`grep -oPr "root=[^\s]*" /boot/cmdline.txt | awk -F= '{printf $NF}'`
+#if test "$root_dev" = "/dev/mmcblk0p7";then
+#sudo cp -rf ./boot/config-noobs-nomal.txt ./boot/config.txt.bak
+#else
+#sudo cp -rf ./boot/config-nomal.txt ./boot/config.txt.bak
+#sudo echo "hdmi_force_hotplug=1" >> ./boot/config.txt.bak
+#fi
+
+source ./system_config.sh
 sudo echo "hdmi_force_hotplug=1" >> ./boot/config.txt.bak
-fi
 sudo echo "hdmi_force_edid_audio=1" >> ./boot/config.txt.bak
 sudo echo "dtparam=i2c_arm=on" >> ./boot/config.txt.bak
 sudo echo "dtparam=spi=on" >> ./boot/config.txt.bak
@@ -39,11 +42,13 @@ fi
 sudo cp -rf ./usr/99-calibration.conf-3508-0 /etc/X11/xorg.conf.d/99-calibration.conf
 sudo touch ./.have_installed
 echo "hdmi:resistance:3508:0:480:320" > ./.have_installed
+
 #nodeplatform=`uname -n`
 #kernel=`uname -r`
 version=`uname -v`
 #if test "$nodeplatform" = "raspberrypi";then
 #echo "this is raspberrypi kernel"
+input_result=0
 version=${version##* }
 #version=${version#*#}
 echo $version
@@ -52,10 +57,21 @@ echo "reboot"
 else
 echo "need to update touch configuration"
 wget --spider -q -o /dev/null --tries=1 -T 10 http://mirrors.zju.edu.cn/raspbian/raspbian
-if [ $? -eq 0 ]; then
-sudo apt-get install xserver-xorg-input-evdev 2> error_output.txt
+if [ $? -ne 0 ]; then
+input_result=1
 else
+sudo apt-get install xserver-xorg-input-evdev  2> error_output.txt
+dpkg -l | grep xserver-xorg-input-evdev > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+input_result=1
+fi
+fi
+if [ $input_result -eq 1 ]; then 
+if [ $hardware_arch -eq 32 ]; then
 sudo dpkg -i -B ./xserver-xorg-input-evdev_1%3a2.10.6-1+b1_armhf.deb 2> error_output.txt
+elif [ $hardware_arch -eq 64 ]; then
+sudo dpkg -i -B ./xserver-xorg-input-evdev_1%3a2.10.6-2_arm64.deb 2> error_output.txt
+fi
 fi
 result=`cat ./error_output.txt`
 echo -e "\033[31m$result\033[0m"