diff --git a/BUILDOPENWRT.md b/BUILDOPENWRT.md
new file mode 100755
index 0000000..ae8830f
--- /dev/null
+++ b/BUILDOPENWRT.md
@@ -0,0 +1,24 @@
+Update feeds
+
+    ./scripts/feeds update -a
+    ./scripts/feeds install -a
+
+If you use chaos_calmer(15.05), you need to modify the Makefile: feeds/packages/utils/rtty/Makefile
+
+    PKG_SOURCE_PROTO:=git
+    PKG_SOURCE_VERSION:=v$(PKG_VERSION)
+    PKG_SOURCE_URL=https://github.com/zhaojh329/rtty.git
+    # Add the following two lines
+    PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+    PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
+    # And comment the line below
+    #PKG_MIRROR_HASH:=23a203351fdd47acfd16d3c3b3e3d51dd65a5d9e8ca89d4b1521d40c40616102
+
+Select rtty in menuconfig and compile new image.
+
+    Utilities  --->
+        Terminal  --->
+            < > rtty-mbedtls............................ A reverse proxy WebTTY (mbedtls)
+            <*> rtty-nossl............................... A reverse proxy WebTTY (NO SSL)
+            < > rtty-openssl............................ A reverse proxy WebTTY (openssl)
+            < > rtty-wolfssl............................ A reverse proxy WebTTY (wolfssl)
\ No newline at end of file
diff --git a/BUILDOPENWRT_ZH.md b/BUILDOPENWRT_ZH.md
new file mode 100755
index 0000000..2aea5ea
--- /dev/null
+++ b/BUILDOPENWRT_ZH.md
@@ -0,0 +1,24 @@
+更新feeds:
+
+    ./scripts/feeds update -a
+    ./scripts/feeds install -a
+
+如果你使用的是chaos_calmer(15.05), 你需要修改Makefile: feeds/packages/utils/rtty/Makefile
+
+    PKG_SOURCE_PROTO:=git
+    PKG_SOURCE_VERSION:=v$(PKG_VERSION)
+    PKG_SOURCE_URL=https://github.com/zhaojh329/rtty.git
+    # Add the following two lines
+    PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+    PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
+    # And comment the line below
+    #PKG_MIRROR_HASH:=23a203351fdd47acfd16d3c3b3e3d51dd65a5d9e8ca89d4b1521d40c40616102
+
+在menuconfig中选择rtty，然后重新编译固件。
+
+    Utilities  --->
+        Terminal  --->
+            < > rtty-mbedtls............................ A reverse proxy WebTTY (mbedtls)
+            <*> rtty-nossl............................... A reverse proxy WebTTY (NO SSL)
+            < > rtty-openssl............................ A reverse proxy WebTTY (openssl)
+            < > rtty-wolfssl............................ A reverse proxy WebTTY (wolfssl)
\ No newline at end of file
diff --git a/README.md b/README.md
index 6629896..c7f5d75 100755
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 [4]: https://github.com/zhaojh329/rtty/pulls
 [5]: https://img.shields.io/badge/Issues-welcome-brightgreen.svg?style=plastic
 [6]: https://github.com/zhaojh329/rtty/issues/new
-[7]: https://img.shields.io/badge/release-2.1.0-blue.svg?style=plastic
+[7]: https://img.shields.io/badge/release-2.2.0-blue.svg?style=plastic
 [8]: https://github.com/zhaojh329/rtty/releases
 [9]: https://travis-ci.org/zhaojh329/rtty.svg?branch=master
 [10]: https://travis-ci.org/zhaojh329/rtty
@@ -120,33 +120,17 @@ Query online devices
 You need to cross compiling by yourself
 
 ## For OpenWRT
-add new feed into "feeds.conf.default":
+Install
 
-    src-git libuwsc https://github.com/zhaojh329/libuwsc-feed.git
-    src-git rtty https://github.com/zhaojh329/rtty-feed.git
+    opkg update
+    opkg list | grep rtty
+    opkg install rtty-nossl
 
-
-for chaos_calmer(15.05)
-
-    src-git libuwsc https://github.com/zhaojh329/libuwsc-feed.git;for-15.05
-    src-git rtty https://github.com/zhaojh329/rtty-feed.git;for-15.05
-
-Install rtty packages:
-
-    ./scripts/feeds update libuwsc rtty
-    ./scripts/feeds install -a -p rtty
-
-Select package rtty in menuconfig and compile new image.
-
-    Utilities  --->
-        Terminal  --->
-            < > rtty-mbedtls............................ A reverse proxy WebTTY (mbedtls)
-            <*> rtty-nossl............................... A reverse proxy WebTTY (NO SSL)
-            < > rtty-openssl............................ A reverse proxy WebTTY (openssl)
-            < > rtty-wolfssl............................ A reverse proxy WebTTY (wolfssl)
+If the install command fails, you can [compile it yourself](/BUILDOPENWRT.md).
 
 Configuring the server parameter
 
+    uci add rtty rtty   # If it's the first configuration
     uci set rtty.@rtty[0].host='your server host'
     uci set rtty.@rtty[0].port='your server port'
 
diff --git a/README_ZH.md b/README_ZH.md
index 3df5f17..b1ddc63 100755
--- a/README_ZH.md
+++ b/README_ZH.md
@@ -6,7 +6,7 @@
 [4]: https://github.com/zhaojh329/rtty/pulls
 [5]: https://img.shields.io/badge/Issues-welcome-brightgreen.svg?style=plastic
 [6]: https://github.com/zhaojh329/rtty/issues/new
-[7]: https://img.shields.io/badge/release-2.1.0-blue.svg?style=plastic
+[7]: https://img.shields.io/badge/release-2.2.0-blue.svg?style=plastic
 [8]: https://github.com/zhaojh329/rtty/releases
 [9]: https://travis-ci.org/zhaojh329/rtty.svg?branch=master
 [10]: https://travis-ci.org/zhaojh329/rtty
@@ -119,32 +119,17 @@ rtty非常适合远程维护你的或者你公司的部署在全球各地的成
 你需要自行交叉编译
 
 ## 如何在OpenWRT中使用
-add new feed into "feeds.conf.default":
+安装
 
-    src-git libuwsc https://github.com/zhaojh329/libuwsc-feed.git
-    src-git rtty https://github.com/zhaojh329/rtty-feed.git
+    opkg update
+    opkg list | grep rtty
+    opkg install rtty-nossl
 
-for chaos_calmer(15.05)
-
-    src-git libuwsc https://github.com/zhaojh329/libuwsc-feed.git;for-15.05
-    src-git rtty https://github.com/zhaojh329/rtty-feed.git;for-15.05
-
-Install rtty packages:
-
-    ./scripts/feeds update libuwsc rtty
-    ./scripts/feeds install -a -p rtty
-
-Select package rtty in menuconfig and compile new image.
-
-    Utilities  --->
-        Terminal  --->
-            < > rtty-mbedtls............................ A reverse proxy WebTTY (mbedtls)
-            <*> rtty-nossl............................... A reverse proxy WebTTY (NO SSL)
-            < > rtty-openssl............................ A reverse proxy WebTTY (openssl)
-            < > rtty-wolfssl............................ A reverse proxy WebTTY (wolfssl)
+如果安装失败，你可以[自己编译](/BUILDOPENWRT_ZH.md)。
 
 配置服务器参数
 
+    uci add rtty rtty   # If it's the first configuration
     uci set rtty.@rtty[0].host='your server host'
     uci set rtty.@rtty[0].port='your server port'
 
diff --git a/build_openwrt.md b/build_openwrt.md
new file mode 100755
index 0000000..ae8830f
--- /dev/null
+++ b/build_openwrt.md
@@ -0,0 +1,24 @@
+Update feeds
+
+    ./scripts/feeds update -a
+    ./scripts/feeds install -a
+
+If you use chaos_calmer(15.05), you need to modify the Makefile: feeds/packages/utils/rtty/Makefile
+
+    PKG_SOURCE_PROTO:=git
+    PKG_SOURCE_VERSION:=v$(PKG_VERSION)
+    PKG_SOURCE_URL=https://github.com/zhaojh329/rtty.git
+    # Add the following two lines
+    PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+    PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
+    # And comment the line below
+    #PKG_MIRROR_HASH:=23a203351fdd47acfd16d3c3b3e3d51dd65a5d9e8ca89d4b1521d40c40616102
+
+Select rtty in menuconfig and compile new image.
+
+    Utilities  --->
+        Terminal  --->
+            < > rtty-mbedtls............................ A reverse proxy WebTTY (mbedtls)
+            <*> rtty-nossl............................... A reverse proxy WebTTY (NO SSL)
+            < > rtty-openssl............................ A reverse proxy WebTTY (openssl)
+            < > rtty-wolfssl............................ A reverse proxy WebTTY (wolfssl)
\ No newline at end of file