diff --git a/led-script/led-script.sh b/led-script/led-script.sh
deleted file mode 100644
index 2941f44..0000000
--- a/led-script/led-script.sh
+++ /dev/null
@@ -1,58 +0,0 @@
-#/bin/bash
-
-RET=0
-
-sleep 2
-
-echo " " 
-echo " "
-echo " "
-echo "######################################################################################"
-echo "########################## LED Testing Start ##########################"
-
-echo "###  all GREEN-LED BLUE-LED turn on about 10s   ###"
-echo 1 > /sys/class/leds/bpi-r4\:pio\:blue/brightness
-echo 1 > /sys/class/leds/bpi-r4\:pio\:green/brightness
-sleep 10
-
-echo "###  all GREEN-LED BLUE-LED turn off about 5s   ###"
-echo 0 > /sys/class/leds/bpi-r4\:pio\:blue/brightness
-echo 0 > /sys/class/leds/bpi-r4\:pio\:green/brightness
-sleep 5
-
-echo "###  all GREEN-LED BLUE-LED1 turn on  ###"
-echo 1 > /sys/class/leds/bpi-r4\:pio\:blue/brightness
-echo 1 > /sys/class/leds/bpi-r4\:pio\:green/brightness
-
-while true
-do
-	read -t20 -s -n1  -p "### Please confirm if the LED can work fine, enter y or n. "y" is good, "n" is for bad. ###" keypress
-	if [ $? -eq 0 ]; then
-		if [ ${keypress} == 'y' ]; then
-			echo " "
-			echo " "
-			echo "###  LED can work fine, LED feature is good  ### "
-			break
-		fi
-
-		if [ ${keypress} == 'n' ]; then
-			RET=1
-			echo " "
-			echo " "
-			echo "Error Notice: LED can not work fine, LED feature is bad"
-			break
-		fi
-	fi
-
-	echo " "
-done
-
-echo "######################################################################################"
-echo " "
-echo " "
-echo " "
-
-sleep 2
-
-return ${RET}
-
diff --git a/led-script/mt_gpio.sh b/led-script/mt_gpio.sh
deleted file mode 100644
index 0b3f7eb..0000000
--- a/led-script/mt_gpio.sh
+++ /dev/null
@@ -1,67 +0,0 @@
-
-SYS_FILE=/sys/class/gpio
-
-mt_gpio_export()
-{
-   pin=$1
-   let pin=pin+428   ### gpio base 428 ###
-
-   if [ ! -f ${SYS_FILE}/export ]; then
-       echo "${SYS_FILE}/export file is not present"
-       exit 1
-   fi
-
-   echo "${pin}" > ${SYS_FILE}/export
-
-   return 0   
-}
-
-mt_gpio_dir()
-{
-   pin=$1
-   let pin=pin+428   ### gpio base 428 ###
-   dir=$2
- 
-   if [ ! -f ${SYS_FILE}/gpio${pin}/direction ]; then
-       echo "${SYS_FILE}/gpio${pin}/direction is not present"
-       exit 1
-   fi
-
-   echo "${dir}" > ${SYS_FILE}/gpio${pin}/direction
-
-   return 0   
-}
-
-mt_gpio_out()
-{
-   pin=$1
-   let pin=pin+428   ### gpio base 428 ###
-   out=$2
- 
-   if [ ! -f ${SYS_FILE}/gpio${pin}/value ]; then
-       echo "${SYS_FILE}/gpio${pin}/value is not present"
-       exit 1
-   fi
-
-   echo "${out}" > ${SYS_FILE}/gpio${pin}/value
-
-   return 0   
-}
-
-mt_gpio_in()
-{
-   pin=$1
-   let pin=pin+428   ### gpio base 428 ###
- 
-   if [ ! -f ${SYS_FILE}/gpio${pin}/value ]; then
-       echo "${SYS_FILE}/gpio${pin}/value is not present"
-       exit 1
-   fi
-
-   result=`cat ${SYS_FILE}/gpio${pin}/value`
-   if [ ${result} == "0" ] ; then
-       return 0
-   else
-       return 1
-   fi
-}