diff --git a/agent/mkdebian/debian/asfvolt16.preinst b/agent/mkdebian/debian/asfvolt16.preinst
index 1237c87..cf43cc1 100644
--- a/agent/mkdebian/debian/asfvolt16.preinst
+++ b/agent/mkdebian/debian/asfvolt16.preinst
@@ -15,35 +15,41 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+DEVMEM_MAJOR=`cat /sys/module/devmem/parameters/bcmolt_devmem_chrdev_major`
 # kill CLI applications
 echo "kill running time application"
-[ -n "`pidof bcm_user_appl`" ] && killall bcm_user_appl
+[ -n "`pidof dev_mgmt_daemon`" ] && killall dev_mgmt_daemon
 [ -n "`pidof bcm.user`" ] && killall bcm.user
-[ -n "`pidof voltha_bal_driver`" ] && killall voltha_bal_driver
-# service bal_core_dist stop
-# service openolt stop
-[ -n "`pidof bal_core_dist`" ] && killall bal_core_dist
-rm -f /var/run/bal_core_dist.pid
+[ -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 
 [ -n "`pidof openolt`" ] && killall openolt
-rm -f /var/run/openolt.pid
+rm -f /tmp/root_dev_mgmt_pid /tmp/root_dev_mgmt_init_done
 
 # unload drivers
 echo "unload kernel drivers"
-[ -n "`lsmod | grep bcm_coop_dba_linux`" ] && rmmod bcm_coop_dba_linux && sleep 1
-[ -n "`lsmod | grep bcm_dev_ctrl_linux`" ] &&  rmmod bcm_dev_ctrl_linux && sleep 1
 [ -n "`lsmod | grep i2c_devs`" ] && rmmod i2c_devs && sleep 1
-[ -n "`lsmod | grep trmux`" ] && rmmod trmux && sleep 1
-[ -n "`lsmod | grep fld`" ] && rmmod fld && sleep 1
+[ -n "`lsmod | grep nltr`" ] &&  rmmod nltr && sleep 1
+[ -n "`lsmod | grep pcie_proxy`" ] && rmmod pcie_proxy && sleep 1
+[ -n "`lsmod | grep devmem`" ] && rmmod devmem && sleep 1
+[ -n "`lsmod | grep fld_linux`" ] && rmmod fld_linux && sleep 1
 [ -n "`lsmod | grep os_linux`" ] && rmmod os_linux && sleep 1
 [ -n "`lsmod | grep ll_pcie`" ] && rmmod ll_pcie && sleep 1
 [ -n "`lsmod | grep linux_user_bde`" ] && rmmod linux-user-bde && sleep 1
 [ -n "`lsmod | grep linux_kernel_bde`" ] && rmmod linux-kernel-bde && sleep 1
 rm -rf /dev/maple_i2c
-rm -rf /dev/bcm_log
-rm -rf /dev/maple_dev_ctrl
+rm -rf /dev/bcmolt_pcie_proxy
+rm -rf /dev/linux-uk-proxy
 rm -rf /dev/linux-user-bde
 rm -rf /dev/linux-kernel-bde
+rm -rf /dev/coop_dba_example
 rm -rf /dev/coop_dba
+for i in {0..7}; do
+    MAJOR=$(($DEVMEM_MAJOR + $i))
+    [ ! -f /dev/bcmolt_devmem_sram$i ] && rm -f /dev/bcmolt_devmem_sram$i
+    [ ! -f /dev/bcmolt_devmem_ddr$i ] && rm -f /dev/bcmolt_devmem_ddr$i
+    [ ! -f /dev/bcmolt_devmem_regs$i ] && rm -f /dev/bcmolt_devmem_regs$i
+done
 
 rm -rf /opt/bcm68620
 rm -rf /run/bcm68620
@@ -51,6 +57,7 @@
 rm -rf  /broadcom
 
 rm -rf /usr/local/lib/libgrpc++.so.1
-rm -rf /usr/local/lib/libgrpc.so.5
-rm -rf /usr/local/lib/libbal_api_dist.so
+rm -rf /usr/local/lib/libgrpc.so.6
+rm -rf /usr/local/lib/libbal_host_api.so
+rm -rf /usr/local/lib/libstdc++.so.6