diff --git a/z8102/files/etc/init.d/z8102 b/z8102/files/etc/init.d/z8102
index 8a5a615de..67f2cc068 100755
--- a/z8102/files/etc/init.d/z8102
+++ b/z8102/files/etc/init.d/z8102
@@ -16,36 +16,42 @@ start_service()
 	#echo $i > /sys/class/gpio/export
 	#echo "out" > /sys/class/gpio/gpio${i}/direction
 	#echo "0" > /sys/class/gpio/gpio${i}/value
-	gpioset `gpiofind "sim1"`=0
+	echo "0" > /sys/class/gpio/sim1/value
+	#gpioset `gpiofind "sim1"`=0
 	# sim 2
 	#i=462
 	#echo $i > /sys/class/gpio/export
 	#echo "out" > /sys/class/gpio/gpio${i}/direction
 	#echo "0" > /sys/class/gpio/gpio${i}/value
-	gpioset `gpiofind "sim2"`=0
+	echo "0" > /sys/class/gpio/sim2/value
+	#gpioset `gpiofind "sim2"`=0
 
 	# stop modem 1
 	#i=459
 	#echo $i > /sys/class/gpio/export
 	#echo "out" > /sys/class/gpio/gpio${i}/direction
 	#echo "0" > /sys/class/gpio/gpio${i}/value
-	gpioset `gpiofind "modem1"`=0
+	echo "0" > /sys/class/gpio/modem1/value
+	#gpioset `gpiofind "modem1"`=0
 
 	# stop modem 2
 	#i=460
 	#echo $i > /sys/class/gpio/export
 	#echo "out" > /sys/class/gpio/gpio${i}/direction
 	#echo "0" > /sys/class/gpio/gpio${i}/value
-	gpioset `gpiofind "modem2"`=0
+	echo "0" > /sys/class/gpio/modem2/value
+	#gpioset `gpiofind "modem2"`=0
 
 	sleep 1
 	# run modem 1
 	#i=459
 	#echo "1" > /sys/class/gpio/gpio${i}/value
-	gpioset `gpiofind "modem1"`=1
+	echo "1" > /sys/class/gpio/modem1/value
+	#gpioset `gpiofind "modem1"`=1
 	sleep 3
 	# run modem 2
 	#i=460
 	#echo "1" > /sys/class/gpio/gpio${i}/value
-	gpioset `gpiofind "modem2"`=1
+	echo "1" > /sys/class/gpio/modem2/value
+	#gpioset `gpiofind "modem2"`=1
 }