diff --git a/mobile/src/main/AndroidManifest.xml b/mobile/src/main/AndroidManifest.xml
index 2c4f35dc..cb369460 100644
--- a/mobile/src/main/AndroidManifest.xml
+++ b/mobile/src/main/AndroidManifest.xml
@@ -18,11 +18,8 @@
             android:targetSdkVersion="25"/>
 
     <application
-            android:allowBackup="true"
             android:name=".ShadowsocksApplication"
-            android:hardwareAccelerated="true"
             android:icon="@mipmap/ic_launcher"
-            android:roundIcon="@mipmap/ic_launcher"
             android:backupAgent=".ShadowsocksBackupAgent"
             android:label="@string/app_name"
             android:banner="@drawable/ic_start_connected">
diff --git a/mobile/src/main/res/values/strings.xml b/mobile/src/main/res/values/strings.xml
index 7e52d5dd..1320f57c 100644
--- a/mobile/src/main/res/values/strings.xml
+++ b/mobile/src/main/res/values/strings.xml
@@ -26,7 +26,6 @@
   <string name="connection_test_error_status_code">Error code: #%d</string>
 
   <!-- proxy category -->
-  <string name="proxy_cat">Server Settings</string>
   <string name="profile_name">Profile Name</string>
   <string name="proxy">Server</string>
   <string name="remote_port">Remote Port</string>
@@ -35,7 +34,6 @@
   <string name="enc_method">Encrypt Method</string>
 
   <!-- feature category -->
-  <string name="feature_cat">Feature Settings</string>
   <string name="ipv6">IPv6 Route</string>
   <string name="ipv6_summary">Redirect IPv6 traffic to remote</string>
   <string name="onetime_auth">One-time Authentication</string>
@@ -75,8 +73,6 @@
   <string name="profile_invalid_input">No valid profile data found.</string>
 
   <!-- alert category -->
-  <string name="yes">Yes</string>
-  <string name="no">No</string>
   <string name="close">Close</string>
   <string name="profile_empty">Please select a profile</string>
   <string name="proxy_empty">Proxy/Password should not be empty</string>
@@ -105,8 +101,6 @@
 
   <!-- profile -->
   <string name="profile_config">Profile config</string>
-  <string name="unsaved_changes_prompt">Changes not saved. Do you want to save?</string>
-  <string name="apply">Apply</string>
   <string name="delete">Remove</string>
   <string name="delete_confirm_prompt">Are you sure you want to remove this profile?</string>
   <string name="share_qr_nfc">QR code/NFC</string>
diff --git a/mobile/src/main/scala/com/github/shadowsocks/plugin/PluginManager.scala b/mobile/src/main/scala/com/github/shadowsocks/plugin/PluginManager.scala
index 568e964a..df1c048c 100644
--- a/mobile/src/main/scala/com/github/shadowsocks/plugin/PluginManager.scala
+++ b/mobile/src/main/scala/com/github/shadowsocks/plugin/PluginManager.scala
@@ -38,7 +38,9 @@ object PluginManager {
       case null =>
       case path => return path
     } catch {
-      case t: Throwable => if (throwable == null) throwable = t
+      case t: Throwable =>
+        t.printStackTrace()
+        if (throwable == null) throwable = t
     }
 
     // add other plugin types here
diff --git a/plugin/src/main/java/com/github/shadowsocks/plugin/PluginOptions.java b/plugin/src/main/java/com/github/shadowsocks/plugin/PluginOptions.java
index a010ff05..3d693d4b 100644
--- a/plugin/src/main/java/com/github/shadowsocks/plugin/PluginOptions.java
+++ b/plugin/src/main/java/com/github/shadowsocks/plugin/PluginOptions.java
@@ -3,6 +3,7 @@ package com.github.shadowsocks.plugin;
 import android.text.TextUtils;
 
 import java.util.HashMap;
+import java.util.Objects;
 import java.util.StringTokenizer;
 
 /**
@@ -23,7 +24,7 @@ public final class PluginOptions extends HashMap<String, String> {
         super(initialCapacity, loadFactor);
     }
 
-    private PluginOptions(String options, boolean parseId) throws IllegalArgumentException {
+    private PluginOptions(String options, boolean parseId) {
         if (TextUtils.isEmpty(options)) return;
         final StringTokenizer tokenizer = new StringTokenizer(options, "\\=;", true);
         final StringBuilder current = new StringBuilder();
@@ -31,8 +32,7 @@ public final class PluginOptions extends HashMap<String, String> {
         while (tokenizer.hasMoreTokens()) {
             String nextToken = tokenizer.nextToken();
             if ("\\".equals(nextToken)) current.append(tokenizer.nextToken());
-            else if ("=".equals(nextToken)) {
-                if (key != null) throw new IllegalArgumentException("Duplicate keys in " + options);
+            else if ("=".equals(nextToken) && key == null) {
                 key = current.toString();
                 current.setLength(0);
             } else if (";".equals(nextToken))
@@ -46,12 +46,13 @@ public final class PluginOptions extends HashMap<String, String> {
                     put(current.toString(), null);
                     current.setLength(0);
                 }
+            else current.append(nextToken);
         }
     }
-    public PluginOptions(String options) throws IllegalArgumentException {
+    public PluginOptions(String options) {
         this(options, true);
     }
-    public PluginOptions(String id, String options) throws IllegalArgumentException {
+    public PluginOptions(String id, String options) {
         this(options, false);
         this.id = id;
     }
@@ -85,4 +86,18 @@ public final class PluginOptions extends HashMap<String, String> {
     public String toString() {
         return toString(true);
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        if (!super.equals(o)) return false;
+        PluginOptions that = (PluginOptions) o;
+        return Objects.equals(id, that.id) && super.equals(that);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(super.hashCode(), id);
+    }
 }
diff --git a/plugin/src/main/res/values/strings.xml b/plugin/src/main/res/values/strings.xml
new file mode 100644
index 00000000..84ed3818
--- /dev/null
+++ b/plugin/src/main/res/values/strings.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="proxy_cat">Server Settings</string>
+    <string name="feature_cat">Feature Settings</string>
+    <string name="unsaved_changes_prompt">Changes not saved. Do you want to save?</string>
+    <string name="yes">Yes</string>
+    <string name="no">No</string>
+    <string name="apply">Apply</string>
+</resources>
diff --git a/plugin/src/main/scala/com/github/shadowsocks/plugin/NativePluginProvider.scala b/plugin/src/main/scala/com/github/shadowsocks/plugin/NativePluginProvider.scala
index 78d5b57d..9f555574 100644
--- a/plugin/src/main/scala/com/github/shadowsocks/plugin/NativePluginProvider.scala
+++ b/plugin/src/main/scala/com/github/shadowsocks/plugin/NativePluginProvider.scala
@@ -14,8 +14,8 @@ import android.os.ParcelFileDescriptor
   *    ...
   *    &lt;application&gt;
   *        ...
-  *        &lt;provider android:name="com.github.shadowsocks.$PLUGIN_ID.PluginProvider"
-  *                     android:authorities="com.github.shadowsocks.$PLUGIN_ID"&gt;
+  *        &lt;provider android:name="com.github.shadowsocks.$PLUGIN_ID.BinaryProvider"
+  *                     android:authorities="com.github.shadowsocks.plugin.$PLUGIN_ID"&gt;
   *            &lt;intent-filter&gt;
   *                &lt;category android:name="com.github.shadowsocks.plugin.CATEGORY_NATIVE_PLUGIN" /&gt;
   *            &lt;/intent-filter&gt;