diff --git a/build-ndk.sh b/build-ndk.sh
index 79427e1d..1031190d 100755
--- a/build-ndk.sh
+++ b/build-ndk.sh
@@ -1,38 +1,14 @@
 #!/bin/bash
 
-# Target 9
-cp jni/Application.mk.9 jni/Application.mk
 ndk-build clean
 ndk-build
-rm -rf src/main/assets/armeabi
 rm -rf src/main/assets/armeabi-v7a
 rm -rf src/main/assets/x86
-mkdir -p src/main/assets/armeabi
 mkdir -p src/main/assets/armeabi-v7a
 mkdir -p src/main/assets/x86
 for app in pdnsd redsocks
 do
-    mv libs/armeabi/$app src/main/assets/armeabi/
     mv libs/armeabi-v7a/$app src/main/assets/armeabi-v7a/
     mv libs/x86/$app src/main/assets/x86/
 done
-rm -rf src/main/jni
-mv libs src/main/jni
-
-# Target 16
-cp jni/Application.mk.16 jni/Application.mk
-ndk-build clean
-ndk-build
-rm -rf src/main/assets/api-16/armeabi
-rm -rf src/main/assets/api-16/armeabi-v7a
-rm -rf src/main/assets/api-16/x86
-mkdir -p src/main/assets/api-16/armeabi
-mkdir -p src/main/assets/api-16/armeabi-v7a
-mkdir -p src/main/assets/api-16/x86
-for app in pdnsd redsocks
-do
-    mv libs/armeabi/$app src/main/assets/api-16/armeabi/
-    mv libs/armeabi-v7a/$app src/main/assets/api-16/armeabi-v7a/
-    mv libs/x86/$app src/main/assets/api-16/x86/
-done
 
diff --git a/jni/Application.mk.16 b/jni/Application.mk
similarity index 68%
rename from jni/Application.mk.16
rename to jni/Application.mk
index 73844094..402fbfe3 100644
--- a/jni/Application.mk.16
+++ b/jni/Application.mk
@@ -1,4 +1,4 @@
-APP_ABI      			:= armeabi armeabi-v7a x86
+APP_ABI      			:= armeabi-v7a x86
 APP_PLATFORM 			:= android-16
 APP_STL      			:= stlport_static
 NDK_TOOLCHAIN_VERSION 	:= 4.8
diff --git a/jni/Application.mk.9 b/jni/Application.mk.9
deleted file mode 100644
index 0b566af1..00000000
--- a/jni/Application.mk.9
+++ /dev/null
@@ -1,4 +0,0 @@
-APP_ABI      			:= armeabi armeabi-v7a x86
-APP_PLATFORM 			:= android-9
-APP_STL      			:= stlport_static
-NDK_TOOLCHAIN_VERSION 	:= 4.8
diff --git a/jni/shadowsocks b/jni/shadowsocks
index d37f8d30..06f1a57c 160000
--- a/jni/shadowsocks
+++ b/jni/shadowsocks
@@ -1 +1 @@
-Subproject commit d37f8d302532a8d442233d9b752324ffff99bbd0
+Subproject commit 06f1a57c9bd5a4ff96966a616ab3f1ec330f4c4c
diff --git a/src/main/AndroidManifest.xml b/src/main/AndroidManifest.xml
index 9a11b6f3..ad6fd36f 100644
--- a/src/main/AndroidManifest.xml
+++ b/src/main/AndroidManifest.xml
@@ -15,7 +15,7 @@
       android:required="false"/>
 
   <uses-sdk
-      android:minSdkVersion="14"
+      android:minSdkVersion="16"
       android:targetSdkVersion="19"/>
 
   <application
diff --git a/src/main/scala/com/github/shadowsocks/Shadowsocks.scala b/src/main/scala/com/github/shadowsocks/Shadowsocks.scala
index a0e9fbb3..f30e7d70 100644
--- a/src/main/scala/com/github/shadowsocks/Shadowsocks.scala
+++ b/src/main/scala/com/github/shadowsocks/Shadowsocks.scala
@@ -825,11 +825,7 @@ class Shadowsocks
 
     crash_recovery()
 
-    if (Build.VERSION.SDK_INT >= 16) {
-      copyAssets("api-16/" + System.getABI)
-    } else {
-      copyAssets(System.getABI)
-    }
+    copyAssets(System.getABI)
 
     if (Build.VERSION.SDK_INT >= 20) {
       copyToSystem()