diff --git a/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/share/openipc/customizer.sh b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/share/openipc/customizer.sh
index b73e821..62b2f5a 100644
--- a/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/share/openipc/customizer.sh
+++ b/devices/hi3518ev200_lite_switcam-hs303-v2/general/overlay/usr/share/openipc/customizer.sh
@@ -16,6 +16,7 @@ fw_setenv wlandev rtl8188eus-switcam-hs303v2
 #
 cli -s .system.staticDir /var/www/majestic
 
+cli -s .isp.blkCnt 5
 cli -s .isp.iqProfile /etc/sensors/iq/ov9732.ini
 
 cli -s .nightMode.enabled true