diff --git a/MHS35-show b/MHS35-show
index a698d39..613564a 100755
--- a/MHS35-show
+++ b/MHS35-show
@@ -42,14 +42,23 @@ sudo touch ./.have_installed
 echo "gpio:resistance:mhs35:90:480:320" > ./.have_installed
 
 #FBCP install
-wget --spider -q -o /dev/null --tries=1 -T 10 https://github.com
+wget --spider -q -o /dev/null --tries=1 -T 10 https://cmake.org/
 if [ $? -eq 0 ]; then
-sudo apt-get install git cmake -y 2> error_output.txt
+sudo apt-get update
+sudo apt-get install cmake -y 2> error_output.txt
 result=`cat ./error_output.txt`
 echo -e "\033[31m$result\033[0m"
-grep -q "^E:" ./error_output.txt && exit
+grep -q "^E:" ./error_output.txt
+type cmake > /dev/null 2>&1
+if [ $? -eq 0 ]; then
 sudo rm -rf rpi-fbcp
+wget --spider -q -o /dev/null --tries=1 -T 10 https://github.com
+if [ $? -eq 0 ]; then
 sudo git clone https://github.com/tasanakorn/rpi-fbcp
+else
+echo "bad network, copy native fbcp!!!"
+sudo cp -r ./usr/rpi-fbcp .
+fi
 sudo mkdir ./rpi-fbcp/build
 cd ./rpi-fbcp/build/
 sudo cmake ..
@@ -61,7 +70,13 @@ if [ $? -eq 0 ]; then
 sudo cp -rf ./usr/99-fbturbo-fbcp.conf  /usr/share/X11/xorg.conf.d/99-fbturbo.conf
 sudo cp -rf ./etc/rc.local /etc/rc.local
 fi
+else
+echo "install cmake error!!!!"
 fi
+else
+echo "bad network, can't install cmake!!!"
+fi
+
 #evdev install
 #nodeplatform=`uname -n`
 #kernel=`uname -r`
@@ -75,17 +90,20 @@ if test $version -lt 2017;then
 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 [ $? -eq 0 ]; then
+sudo apt-get install xserver-xorg-input-evdev  2> error_output.txt
+else
 sudo dpkg -i -B ./xserver-xorg-input-evdev_1%3a2.10.6-1+b1_armhf.deb 2> error_output.txt
-#sudo apt-get install xserver-xorg-input-evdev  2> error_output.txt
+fi
 result=`cat ./error_output.txt`
 echo -e "\033[31m$result\033[0m"
 grep -q "error:" ./error_output.txt && exit
 sudo cp -rf /usr/share/X11/xorg.conf.d/10-evdev.conf /usr/share/X11/xorg.conf.d/45-evdev.conf
 #echo "reboot"
-fi
 #else
 #echo "this is not raspberrypi kernel, no need to update touch configure, reboot"
-#fi
+fi
 
 sudo sync
 sudo sync