diff --git a/patches/31-usb_wifi b/patches/31-usb_wifi
deleted file mode 100644
index 3aecad3d..00000000
--- a/patches/31-usb_wifi
+++ /dev/null
@@ -1,69 +0,0 @@
-#!/bin/sh
-
-#logger ACTION=$ACTION DEVPATH=$DEVPATH SUBSYSTEM=$SUBSYSTEM DEVTYPE=$DEVTYPE PRODUCT=$PRODUCT MODALIAS=$MODALIAS
-
-FE_DIR=/root/.friendlyelec/
-if { [ "${DEVTYPE}" = usb_device ] || [ "${DEVTYPE}" = usb_interface ] ;} && { [ "${PRODUCT}" = "bda/c811/200" ] || [ "${PRODUCT}" = "bda/c820/200" ] ;}; then
-    MODULE=rtl8821cu
-    TARGET=wlan${MODULE}
-
-    WIFI_PATH=`echo ${DEVPATH} | cut -d/ -f 3-`
-    RADIO=`uci show wireless | grep ${WIFI_PATH} | cut -d. -f 2`
-    #logger "${MODULE}: ${WIFI_PATH} ${RADIO}"
-
-    if [ "${ACTION}" = bind ]; then
-        logger "${MODULE}: insert"
-
-        # Rename physical dev
-        # Unimplement(cause error), please FIX ME
-        FULL_PATH=`find /sys/${DEVPATH} -name wlan*`
-        ADDRESS=`cat ${FULL_PATH}/address`
-        WLAN=`basename ${FULL_PATH}`
-        # logger "rename ${WLAN} to $TARGET"
-        # ip link set ${WLAN} name $TARGET
-
-        mkdir -p ${FE_DIR}
-        if [ -e ${FE_DIR}/first_insert_${MODULE} ]; then
-            logger "not first init for ${MODULE}"
-        else
-            touch ${FE_DIR}/first_insert_${MODULE}
-            logger "first init for ${MODULE}"
-
-            # Enable wifi and change ssid
-            if [ -n "`uci get wireless.${RADIO}`" ]; then
-                uci batch <<EOF
-set wireless.${RADIO}.disabled=0
-set wireless.default_${RADIO}.ssid=${MODULE}-${ADDRESS}
-set wireless.default_${RADIO}.encryption=psk2
-set wireless.default_${RADIO}.key=password
-EOF
-            fi
-
-            # add lan interface if not exist. dnsmasq need this
-            if [ -z "`uci get network.lan`" ]; then
-                uci batch <<EOF
-set network.lan='interface'
-set network.lan.type='bridge'
-set network.lan.proto='static'
-set network.lan.ipaddr='192.168.2.1'
-set network.lan.netmask='255.255.255.0'
-set network.lan.ip6assign='60'
-EOF
-            fi
-
-            uci commit 
-        fi
-        
-        wifi reload
-        sleep 1
-        /etc/init.d/network restart
-    elif [ "${ACTION}" = unbind ]; then
-        logger "${MODULE}: eject"
-
-        # User may change ${RADIO}'s config. So we don't modify it when eject.
-        #uci delete wireless.${RADIO}
-        #uci delete wireless.default_${RADIO}
-        #uci commit
-        #wifi reload
-    fi
-fi