diff --git a/device/milkv-duo/overlay/mnt/system/ko/loadsystemko.sh b/device/milkv-duo/overlay/mnt/system/ko/loadsystemko.sh
new file mode 100644
index 000000000..8517123c4
--- /dev/null
+++ b/device/milkv-duo/overlay/mnt/system/ko/loadsystemko.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+${CVI_SHOPTS}
+#
+# Start to insert kernel modules
+#
+insmod /mnt/system/ko/cv180x_sys.ko
+insmod /mnt/system/ko/cv180x_base.ko
+#insmod /mnt/system/ko/cv180x_rtos_cmdqu.ko
+#insmod /mnt/system/ko/cv180x_fast_image.ko
+insmod /mnt/system/ko/cvi_mipi_rx.ko
+insmod /mnt/system/ko/snsr_i2c.ko
+insmod /mnt/system/ko/cv180x_vi.ko
+insmod /mnt/system/ko/cv180x_vpss.ko
+insmod /mnt/system/ko/cv180x_dwa.ko
+#insmod /mnt/system/ko/cv180x_vo.ko
+#insmod /mnt/system/ko/cv180x_mipi_tx.ko
+insmod /mnt/system/ko/cv180x_rgn.ko
+
+#insmod /mnt/system/ko/cv180x_wdt.ko
+insmod /mnt/system/ko/cv180x_thermal.ko
+insmod /mnt/system/ko/cv180x_clock_cooling.ko
+
+insmod /mnt/system/ko/cv180x_tpu.ko
+insmod /mnt/system/ko/cv180x_vcodec.ko
+insmod /mnt/system/ko/cv180x_jpeg.ko
+insmod /mnt/system/ko/cvi_vc_driver.ko MaxVencChnNum=9 MaxVdecChnNum=9
+#insmod /mnt/system/ko/cv180x_rtc.ko
+#insmod /mnt/system/ko/cv180x_ive.ko
+
+echo 3 > /proc/sys/vm/drop_caches
+dmesg -n 4
+
+#usb hub control
+#/etc/uhubon.sh host
+
+exit $?
diff --git a/device/milkv-duo256m/overlay/mnt/system/ko/loadsystemko.sh b/device/milkv-duo256m/overlay/mnt/system/ko/loadsystemko.sh
new file mode 100644
index 000000000..b07a47db8
--- /dev/null
+++ b/device/milkv-duo256m/overlay/mnt/system/ko/loadsystemko.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+${CVI_SHOPTS}
+#
+# Start to insert kernel modules
+#
+insmod /mnt/system/ko/cv181x_sys.ko
+insmod /mnt/system/ko/cv181x_base.ko
+#insmod /mnt/system/ko/cv181x_rtos_cmdqu.ko
+#insmod /mnt/system/ko/cv181x_fast_image.ko
+insmod /mnt/system/ko/cvi_mipi_rx.ko
+insmod /mnt/system/ko/snsr_i2c.ko
+insmod /mnt/system/ko/cv181x_vi.ko
+insmod /mnt/system/ko/cv181x_vpss.ko
+insmod /mnt/system/ko/cv181x_dwa.ko
+insmod /mnt/system/ko/cv181x_vo.ko
+#insmod /mnt/system/ko/cv181x_mipi_tx.ko
+insmod /mnt/system/ko/cv181x_rgn.ko
+
+#insmod /mnt/system/ko/cv181x_wdt.ko
+insmod /mnt/system/ko/cv181x_clock_cooling.ko
+
+insmod /mnt/system/ko/cv181x_tpu.ko
+insmod /mnt/system/ko/cv181x_vcodec.ko
+insmod /mnt/system/ko/cv181x_jpeg.ko
+insmod /mnt/system/ko/cvi_vc_driver.ko MaxVencChnNum=9 MaxVdecChnNum=9
+#insmod /mnt/system/ko/cv181x_rtc.ko
+insmod /mnt/system/ko/cv181x_ive.ko
+
+echo 3 > /proc/sys/vm/drop_caches
+dmesg -n 4
+
+#usb hub control
+#/etc/uhubon.sh host
+
+exit $?
diff --git a/device/milkv-duos-sd/overlay/mnt/system/ko/loadsystemko.sh b/device/milkv-duos-sd/overlay/mnt/system/ko/loadsystemko.sh
new file mode 100644
index 000000000..b07a47db8
--- /dev/null
+++ b/device/milkv-duos-sd/overlay/mnt/system/ko/loadsystemko.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+${CVI_SHOPTS}
+#
+# Start to insert kernel modules
+#
+insmod /mnt/system/ko/cv181x_sys.ko
+insmod /mnt/system/ko/cv181x_base.ko
+#insmod /mnt/system/ko/cv181x_rtos_cmdqu.ko
+#insmod /mnt/system/ko/cv181x_fast_image.ko
+insmod /mnt/system/ko/cvi_mipi_rx.ko
+insmod /mnt/system/ko/snsr_i2c.ko
+insmod /mnt/system/ko/cv181x_vi.ko
+insmod /mnt/system/ko/cv181x_vpss.ko
+insmod /mnt/system/ko/cv181x_dwa.ko
+insmod /mnt/system/ko/cv181x_vo.ko
+#insmod /mnt/system/ko/cv181x_mipi_tx.ko
+insmod /mnt/system/ko/cv181x_rgn.ko
+
+#insmod /mnt/system/ko/cv181x_wdt.ko
+insmod /mnt/system/ko/cv181x_clock_cooling.ko
+
+insmod /mnt/system/ko/cv181x_tpu.ko
+insmod /mnt/system/ko/cv181x_vcodec.ko
+insmod /mnt/system/ko/cv181x_jpeg.ko
+insmod /mnt/system/ko/cvi_vc_driver.ko MaxVencChnNum=9 MaxVdecChnNum=9
+#insmod /mnt/system/ko/cv181x_rtc.ko
+insmod /mnt/system/ko/cv181x_ive.ko
+
+echo 3 > /proc/sys/vm/drop_caches
+dmesg -n 4
+
+#usb hub control
+#/etc/uhubon.sh host
+
+exit $?