diff --git a/feed/mtk_factory_rw/files/mtk_factory_rw.sh b/feed/mtk_factory_rw/files/mtk_factory_rw.sh
index e5bd47e..3124088 100755
--- a/feed/mtk_factory_rw/files/mtk_factory_rw.sh
+++ b/feed/mtk_factory_rw/files/mtk_factory_rw.sh
@@ -47,9 +47,10 @@
 		wan_mac_offset=0x1F806
 		;;
 	*7988*)
-		#2560k - 12 byte
-		lan_mac_offset=0x27FFF4
-		wan_mac_offset=0x27FFFA
+		#1024k - 18 byte
+		lan2_mac_offset=0xFFFEE
+		lan_mac_offset=0xFFFF4
+		wan_mac_offset=0xFFFFA
 		;;
 	*)
 		lan_mac_offset=0x2A
@@ -104,6 +105,9 @@
 	if [ "$1" == "lan" ]; then
 		#read lan mac
 		Get_offset_data 6 ${lan_mac_offset}
+	elif [ "$1" == "lan2" ]; then
+		#read lan2 mac
+		Get_offset_data 6 ${lan2_mac_offset}
 	elif [ "$1" == "wan" ]; then
 		#read wan mac
 		Get_offset_data 6 ${wan_mac_offset}
@@ -126,6 +130,10 @@
 		#write lan mac
 		Set_offset_data 6 ${lan_mac_offset} $@
 
+	elif [ "$1" == "lan2" ]; then
+		#write lan2 mac
+		Set_offset_data 6 ${lan2_mac_offset} $@
+
 	elif [ "$1" == "wan" ]; then
 		#write wan mac
 		Set_offset_data 6 ${wan_mac_offset} $@
@@ -140,7 +148,7 @@
 # 2. Set/Get the offset data: mtk_factory -r/-w length offset /data
 # 3. Overwrite from offset1 to offset2 by length byte : mtk_factory -o length from to
 if [ "$1" == "-r" ]; then
-	if [ "$2" == "lan" -o "$2" == "wan" ]; then
+	if [ "$2" == "lan" -o "$2" == "lan2" -o "$2" == "wan" ]; then
 		GetMac $2
 	elif [ "$2" -eq "$2" ]; then
 		Get_offset_data $2 $3
@@ -150,7 +158,7 @@
 		exit 1
 	fi
 elif [ "$1" == "-w" ]; then
-	if [ "$2" == "lan" -o "$2" == "wan" ]; then
+	if [ "$2" == "lan"  -o "$2" == "lan2" -o "$2" == "wan" ]; then
 		SetMac $2 $@
 	else
 		Set_offset_data $2 $3 $@