diff --git a/agent/device/rlt-1600g-w/mkdebian/debian/rlt-1600g-w.preinst b/agent/device/rlt-1600g-w/mkdebian/debian/rlt-1600g-w.preinst
new file mode 100755
index 0000000..fd44b74
--- /dev/null
+++ b/agent/device/rlt-1600g-w/mkdebian/debian/rlt-1600g-w.preinst
@@ -0,0 +1,51 @@
+#!/bin/bash
+
+#Copyright 2018-present Open Networking Foundation
+#
+#Licensed under the Apache License, Version 2.0 (the "License");
+#you may not use this file except in compliance with the License.
+#You may obtain a copy of the License at
+#
+#http://www.apache.org/licenses/LICENSE-2.0
+#
+#Unless required by applicable law or agreed to in writing, software
+#distributed under the License is distributed on an "AS IS" BASIS,
+#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#See the License for the specific language governing permissions and
+#limitations under the License.
+
+# kill CLI applications
+echo "kill running time application"
+[ -n "`pidof openolt`" ] && service openolt stop
+[ -n "`pidof openolt`" ] && killall openolt
+[ -n "`pidof dev_mgmt_daemon`" ] && service dev_mgmt_daemon stop
+[ -n "`pidof dev_mgmt_daemon`" ] && killall dev_mgmt_daemon
+[ -n "`pidof bcm.user`" ] && killall bcm.user
+[ -n "`pidof dev_mgmt_attach`" ] && killall dev_mgmt_attach
+[ -n "`pidof embedded_console`" ] && killall embedded_console
+[ -n "`pidof example_user_appl`" ] && killall example_user_appl
+
+rm -f /tmp/root_dev_mgmt_pid /tmp/root_dev_mgmt_init_done
+sleep 3
+
+if [ -d /opt/bcm68650 ]; then
+    bash /opt/bcm68650/svk_init.sh -clean
+    sleep 3
+fi
+
+rm -rf /tmp/bcm68650_svk_init/
+
+rm -rf /opt/bcm68650
+rm -rf /opt/openolt
+rm -rf /broadcom
+
+sed -i '\/rm -rf \/tmp\/bcm68650_svk_init/d' /etc/rc.local
+sed -i '\/nohup bash \/opt\/openolt\/openolt_dev_mgmt_daemon_process_watchdog &/d' /etc/rc.local
+
+rm -rf /run/bcm68650
+rm -rf /usr/local/lib/libz.so.1
+rm -rf /usr/local/lib/libbal_host_api.so
+rm -rf /usr/local/lib/libstdc++.so.6
+rm -f /etc/init.d/openolt
+rm -f /etc/init.d/dev_mgmt_daemon
+rm -f /etc/logrotate.d/openolt