diff --git a/install.sh b/install.sh
index 829afc7..4dca25c 100644
--- a/install.sh
+++ b/install.sh
@@ -3,20 +3,22 @@ RED_COLOR='\e[1;31m'
 GREEN_COLOR='\e[1;32m'
 RES='\e[0m'
 
-# OpenWrt Info
+# sysinfo
 if [ -f /etc/openwrt_release ]; then
 	. /etc/openwrt_release
 	version=$(echo ${DISTRIB_RELEASE%%.*})
 	platform=$(echo $DISTRIB_ARCH)
+	ldd_version=$(ldd --version 2>&1 | grep Version | awk '{print $2}')
+	[ ${ldd_version%.*} = "1.2" ] && sdk=22.03 || sdk=21.02
 else
 	echo -e "${RED_COLOR}Unknown OpenWRT Version${RES}"
 	exit 1
 fi
 
-# TMP
-TMPDIR=$(mktemp -d) || exit 1
+# temp
+temp_dir=$(mktemp -d) || exit 1
 
-# GitHub mirror
+# github mirror
 ip_info=$(curl -sk https://ip.cooluc.com)
 country_code=$(echo $ip_info | sed -r 's/.*country_code":"([^"]*).*/\1/')
 if [ $country_code = "CN" ]; then
@@ -26,81 +28,44 @@ if [ $country_code = "CN" ]; then
 	fi
 fi
 
-# Check
 CHECK() (
-	echo -e "\r\n${GREEN_COLOR}Checking available space  ...${RES}"
+	echo -e "\n${GREEN_COLOR}Checking available space  ...${RES}"
 	ROOT_SPACE=$(df -m /usr | awk 'END{print $4}')
 	if [ $ROOT_SPACE -lt 40 ]; then
-		echo -e "\r\n${RED_COLOR}Error, The system storage space is less than 40MB.${RES}"
+		echo -e "\n${RED_COLOR}Error, The system storage space is less than 40MB.${RES}"
 		exit 1;
 	fi
-	echo -e "\r\n${GREEN_COLOR}Checking platform  ...${RES}\r\n"
+	echo -e "\n${GREEN_COLOR}Checking platform  ...${RES}\n"
 	prebuilt="aarch64_cortex-a53 aarch64_cortex-a72 aarch64_generic arm_arm1176jzf-s_vfp arm_arm926ej-s arm_cortex-a15_neon-vfpv4 arm_cortex-a5_vfpv4 arm_cortex-a7 arm_cortex-a7_neon-vfpv4 arm_cortex-a8_vfpv3 arm_cortex-a9 arm_cortex-a9_neon arm_cortex-a9_vfpv3-d16 arm_fa526 arm_mpcore arm_xscale i386_pentium-mmx i386_pentium4 mips64_octeonplus mips_24kc mips_4kec mips_mips32 mipsel_24kc mipsel_24kc_24kf mipsel_74kc mipsel_mips32 x86_64"
 	verif=$(expr match "$prebuilt" ".*\($platform\)")
 	if [[ ! $verif ]]; then
 		echo -e "${RED_COLOR}Error! The current \"$platform\" platform is not currently supported.${RES}"
 		exit 1;
 	else
-		echo -e "${GREEN_COLOR}Update opkg sources ...${RES}"
+		echo -e "${GREEN_COLOR}Install luci-compat ...${RES}\n"
 		opkg update
 		opkg install luci-compat
 	fi
 )
 
 DOWNLOAD() (
-	echo -e "\r\n${GREEN_COLOR}Download Packages ...${RES}\r\n"
-	# get repos info
-	curl -sk --connect-timeout 10 "https://api.github.com/repos/sbwml/luci-app-alist/releases" | grep "browser_download_url" > $TMPDIR/releases.txt
+	echo -e "\n${GREEN_COLOR}Download "$mirror"https://github.com/sbwml/luci-app-alist/releases/latest/download/openwrt-$sdk-$platform.tar.gz ...${RES}\n"
+	curl --connect-timeout 30 -m 600 -kLo "$temp_dir/openwrt-$sdk-$platform.tar.gz" "$mirror"https://github.com/sbwml/luci-app-alist/releases/latest/download/openwrt-$sdk-$platform.tar.gz
 	if [ $? -ne 0 ]; then
-		echo -e "${RED_COLOR}Failed to get version information, Please check the network status.${RES}"
-		rm -rf $TMPDIR
-		exit 1
-	fi
-
-	alist=$(cat $TMPDIR/releases.txt | grep "browser_download_url" | grep $platform.ipk | head -1 | awk '{print $2}' | sed 's/\"//g')
-	luci_app=$(cat $TMPDIR/releases.txt | grep "browser_download_url" | grep luci-app-alist_ | head -1 | awk '{print $2}' | sed 's/\"//g')
-	luci_i18n=$(cat $TMPDIR/releases.txt | grep "browser_download_url" | grep luci-i18n-alist-zh-cn | head -1 | awk '{print $2}' | sed 's/\"//g')
-
-	# download
-	echo -e "${GREEN_COLOR}Downloading $alist ...${RES}"
-	curl --connect-timeout 30 -m 600 -kLo "$TMPDIR/alist_$platform.ipk" $mirror$alist
-	if [ $? -ne 0 ]; then
-		echo -e "\r\n${RED_COLOR}Error! Download $alist failed.${RES}"
-		rm -rf $TMPDIR
-		exit 1
-	fi
-	echo -e "${GREEN_COLOR}Downloading $luci_app ...${RES}"
-	curl --connect-timeout 30 -m 600 -kLo "$TMPDIR/luci-app-alist.ipk" $mirror$luci_app
-	if [ $? -ne 0 ]; then
-		echo -e "\r\n${RED_COLOR}Error! Download $luci_app failed.${RES}"
-		rm -rf $TMPDIR
-		exit 1
-	fi
-	echo -e "${GREEN_COLOR}Downloading $luci_i18n ...${RES}"
-	curl --connect-timeout 30 -m 600 -kLo "$TMPDIR/luci-i18n-alist-zh-cn.ipk" $mirror$luci_i18n
-	if [ $? -ne 0 ]; then
-		echo -e "\r\n${RED_COLOR}Error! Download $luci_i18n failed.${RES}"
-		rm -rf $TMPDIR
+		echo -e "\n${RED_COLOR}Error! Download openwrt-$sdk-$platform.tar.gz failed.${RES}"
+		rm -rf $temp_dir
 		exit 1
 	fi
 )
 
 INSTALL() (
-	# Install
-	echo -e "\r\n${GREEN_COLOR}Install Packages ...${RES}\r\n"
-	opkg install $TMPDIR/alist_$platform.ipk
-	opkg install $TMPDIR/luci-app-alist.ipk
-	opkg install $TMPDIR/luci-i18n-alist-zh-cn.ipk
-	rm -rf $TMPDIR /tmp/luci-*
-	echo -e "${GREEN_COLOR}Done!${RES}"
+	echo -e "\n${GREEN_COLOR}Install Packages ...${RES}\n"
+	tar -zxf $temp_dir/openwrt-$sdk-$platform.tar.gz -C $temp_dir/
+	opkg install $temp_dir/packages_ci/alist*.ipk
+	opkg install $temp_dir/packages_ci/luci-app-alist*.ipk
+	opkg install $temp_dir/packages_ci/luci-i18n*.ipk
+	rm -rf $temp_dir /tmp/luci-*
+	echo -e "\n${GREEN_COLOR}Done!${RES}\n"
 )
 
-CHECK
-if [ $? -eq 0 ]; then
-	DOWNLOAD
-else
-	exit 1
-fi
-if [ $? -eq 0 ]; then
-	INSTALL
-fi
+CHECK && DOWNLOAD && INSTALL