diff --git a/build/tools/common/sd_tools/genimage_rootless.cfg b/build/tools/common/sd_tools/genimage_rootless.cfg
index 54027d946..fb1fe68ea 100644
--- a/build/tools/common/sd_tools/genimage_rootless.cfg
+++ b/build/tools/common/sd_tools/genimage_rootless.cfg
@@ -5,7 +5,7 @@ image boot.vfat {
                         "fip.bin",
                         "rawimages/boot.sd",
 			"usb.dev",
-			"usb.rndis0",
+			"usb.ncm0",
 			"wifi.sta",
 			"gt9xx",
 			"logo.jpeg",
diff --git a/build/tools/common/sd_tools/sd_gen_burn_image_rootless.sh b/build/tools/common/sd_tools/sd_gen_burn_image_rootless.sh
index 0f04deeb4..1de7e1c54 100755
--- a/build/tools/common/sd_tools/sd_gen_burn_image_rootless.sh
+++ b/build/tools/common/sd_tools/sd_gen_burn_image_rootless.sh
@@ -27,7 +27,7 @@ cp -fv ${output_dir}/fip.bin ${output_dir}/input/
 cp -fv ${output_dir}/rawimages/boot.sd ${output_dir}/input/rawimages/
 cp -fv ${output_dir}/rawimages/rootfs.sd ${output_dir}/input/
 touch ${output_dir}/input/usb.dev
-touch ${output_dir}/input/usb.rndis0
+touch ${output_dir}/input/usb.ncm0
 touch ${output_dir}/input/wifi.sta
 touch ${output_dir}/input/gt9xx
 touch ${output_dir}/input/fb
diff --git a/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S03usbdev b/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S03usbdev
index b68304f89..35a4d80c7 100755
--- a/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S03usbdev
+++ b/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S03usbdev
@@ -82,15 +82,24 @@ then
 			rm -rf configs/c.1/acm.GS0
 			ln -s functions/acm.GS0 configs/c.1/
 		fi
-		if [ -e /boot/usb.rndis0 ]
+		if [ -e /boot/usb.ncm0 ]
+		then
+			mkdir -p functions/ncm.usb0
+			rm -rf configs/c.1/ncm.usb0
+			ln -s functions/ncm.usb0 configs/c.1/
+			echo 02 > functions/rndis.usb0/class
+			echo 0d > functions/rndis.usb0/subclass
+			echo 00 > functions/rndis.usb0/protocol
+		elif [ -e /boot/usb.rndis0 ]
 		then
 			mkdir -p functions/rndis.usb0
 			rm -rf configs/c.1/rndis.usb0
 			ln -s functions/rndis.usb0 configs/c.1/
-			echo e0 > /sys/kernel/config/usb_gadget/g0/functions/rndis.usb0/class
-			echo 01 > /sys/kernel/config/usb_gadget/g0/functions/rndis.usb0/subclass
-			echo 03 > /sys/kernel/config/usb_gadget/g0/functions/rndis.usb0/protocol
+			echo e0 > functions/rndis.usb0/class
+			echo 01 > functions/rndis.usb0/subclass
+			echo 03 > functions/rndis.usb0/protocol
 		fi
+
 		if [ -e /boot/usb.disk0 ]
 		then
 			mkdir -p functions/mass_storage.disk0
@@ -125,3 +134,4 @@ then
 	echo '' > /sys/kernel/config/usb_gadget/g0/UDC
 	echo host > /proc/cviusb/otg_role
 fi
+
diff --git a/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S10uuid b/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S10uuid
index 95ae021c4..8d67144d0 100755
--- a/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S10uuid
+++ b/buildroot/board/cvitek/SG200X/overlay/etc/init.d/S10uuid
@@ -46,6 +46,20 @@ then
 	ifconfig eth0 up
 	echo "ethernet mac address: ${new_ethmac}"
 
+	if [ -e /boot/usb.ncm0 ]
+	then
+		if [ -e /boot/usb.ncm0.mac ]
+		then
+			new_mac=$(cat /boot/usb.ncm0.mac)
+		else
+			new_mac=$(hex2mac 48da356e$(sha512sum /sys/class/cvi-base/base_uid | head -c 4))
+		fi
+		ifconfig usb0 down
+		ip link set usb0 address ${new_mac}
+		ifconfig usb0 up
+		echo "ncm mac address: ${new_mac}"
+	fi
+
 	if [ -e /boot/usb.rndis0 ]
 	then
 		if [ -e /boot/usb.rndis0.mac ]