diff --git a/buildroot/board/cvitek/SG200X/overlay/etc/adbd_monitor.sh b/buildroot/board/cvitek/SG200X/overlay/etc/adbd_monitor.sh
index 92ebba204..1b8752620 100755
--- a/buildroot/board/cvitek/SG200X/overlay/etc/adbd_monitor.sh
+++ b/buildroot/board/cvitek/SG200X/overlay/etc/adbd_monitor.sh
@@ -7,8 +7,9 @@ then
         if [ -z "$(cat $UDC_PATH | tr -d '[:space:]')" ];
         then
             echo "try restart usb device"
-            /etc/init.d/S03usbdev stop
-            /etc/init.d/S03usbdev start
+            /etc/init.d/S08usbdev stop
+            /etc/init.d/S08usbdev start
+            /etc/init.d/S30gadget_nic restart
         fi
         sleep 5
     done
diff --git a/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S08usbdev b/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S08usbdev
index e07a844db..7630ba409 100755
--- a/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S08usbdev
+++ b/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S08usbdev
@@ -199,7 +199,7 @@ then
 
         if [ -e /boot/usb.adbd ]
         then
-            if [ -z $(ps aux | grep adbd_monitor | grep -v grep) ]; then
+            if [ -z "$(ps aux | grep adbd_monitor | grep -v grep)" ]; then
                 /etc/adbd_monitor.sh &
             fi
         fi