diff --git a/app/build.gradle b/app/build.gradle
index e1521e1..970055f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -9,8 +9,8 @@ android {
         applicationId "com.zane.smapiinstaller"
         minSdkVersion 19
         targetSdkVersion 28
-        versionCode 7
-        versionName "1.1.3"
+        versionCode 8
+        versionName "1.2.0"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
@@ -42,8 +42,8 @@ dependencies {
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'com.google.android.material:material:1.1.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation 'androidx.navigation:navigation-fragment:2.3.0-alpha02'
-    implementation 'androidx.navigation:navigation-ui:2.3.0-alpha02'
+    implementation 'androidx.navigation:navigation-fragment:2.3.0-alpha03'
+    implementation 'androidx.navigation:navigation-ui:2.3.0-alpha03'
     implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
     implementation 'com.madgag.spongycastle:core:1.54.0.0'
     implementation 'com.madgag.spongycastle:prov:1.54.0.0'
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 2fc68f5..a69229f 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -11,6 +11,7 @@
     <application
         android:name=".MainApplication"
         android:allowBackup="true"
+        android:fullBackupContent="@xml/appcenter_backup_rule"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
diff --git a/app/src/main/assets/help_item_list.json b/app/src/main/assets/help_item_list.json
new file mode 100644
index 0000000..c6d72f4
--- /dev/null
+++ b/app/src/main/assets/help_item_list.json
@@ -0,0 +1,14 @@
+{
+  "version": 0,
+  "items": [
+    {
+      "title": "Mod安装一般流程",
+      "author": "ZaneYork",
+      "content": "1.前往<a href=\"https://smapi.io/mods\">兼容性查询</a>网站确认目标Mod的兼容性以及最新版本下载地址<br>2.下载Mod到手机<br>3.通过压缩文件管理器解压Mod文件包到手机内置存储的StardewValley/Mods目录下<br>4.点击安装器提供的启动按钮确认新增Mod之后的环境是否正常并启动游戏"
+    },{
+      "title": "部分常用框架包下载链接",
+      "author": "ZaneYork",
+      "content": "<a href=\"https://www.nexusmods.com/stardewvalley/mods/1915?tab=files\">Content Patcher</a>: CP前置，大部分美化包(非xnb替换类)需要的前置Mod<br><a href=\"https://www.nexusmods.com/stardewvalley/mods/1348?tab=files\">Space Core</a>: SC前置，被Json Assets等Mod依赖的框架<br><a href=\"https://www.nexusmods.com/stardewvalley/mods/1720?tab=files\">Json Assets</a>: JA前置，大部分新增物品类Mod需要的前置Mod<br><a href=\"https://www.nexusmods.com/stardewvalley/mods/4970?tab=files\">Producer Framework Mod</a>: PFM前置，大部分新增制作配方类Mod需要的前置Mod"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/app/src/main/assets/smapi/metadata.json b/app/src/main/assets/smapi/metadata.json
index 78918ba..989e7d7 100644
--- a/app/src/main/assets/smapi/metadata.json
+++ b/app/src/main/assets/smapi/metadata.json
@@ -158,11 +158,6 @@
             "~1.1.2 | Status": "AssumeBroken" // crashes game on startup
         },
 
-        "Fix Dice": {
-            "ID": "ashley.fixdice",
-            "~1.1.2 | Status": "AssumeBroken" // crashes game on startup
-        },
-
         "Grass Growth": {
             "ID": "bcmpinc.GrassGrowth",
             "~1.0 | Status": "AssumeBroken"
diff --git a/app/src/main/java/com/zane/smapiinstaller/constant/Constants.java b/app/src/main/java/com/zane/smapiinstaller/constant/Constants.java
index cb2592d..b5f8932 100644
--- a/app/src/main/java/com/zane/smapiinstaller/constant/Constants.java
+++ b/app/src/main/java/com/zane/smapiinstaller/constant/Constants.java
@@ -8,5 +8,7 @@ public class Constants {
 
     public static final String DLC_LIST_UPDATE_URL = "http://dl.zaneyork.cn/smapi/downloadable_content_list.json";
 
+    public static final String HELP_LIST_UPDATE_URL = "http://dl.zaneyork.cn/smapi/help_item_list.json";
+
     public static final String APP_CENTER_SECRET = "cb44e94a-7b2f-431e-9ad9-48013ec8c208";
 }
diff --git a/app/src/main/java/com/zane/smapiinstaller/entity/DownloadableContentList.java b/app/src/main/java/com/zane/smapiinstaller/entity/DownloadableContentList.java
index 2dbe167..743e0ee 100644
--- a/app/src/main/java/com/zane/smapiinstaller/entity/DownloadableContentList.java
+++ b/app/src/main/java/com/zane/smapiinstaller/entity/DownloadableContentList.java
@@ -3,9 +3,10 @@ package com.zane.smapiinstaller.entity;
 import java.util.List;
 
 import lombok.Data;
+import lombok.EqualsAndHashCode;
 
 @Data
-public class DownloadableContentList {
-    private int version;
+@EqualsAndHashCode(callSuper = true)
+public class DownloadableContentList extends UpdatableList {
     List<DownloadableContent> contents;
 }
diff --git a/app/src/main/java/com/zane/smapiinstaller/entity/HelpItem.java b/app/src/main/java/com/zane/smapiinstaller/entity/HelpItem.java
new file mode 100644
index 0000000..0bd4d44
--- /dev/null
+++ b/app/src/main/java/com/zane/smapiinstaller/entity/HelpItem.java
@@ -0,0 +1,10 @@
+package com.zane.smapiinstaller.entity;
+
+import lombok.Data;
+
+@Data
+public class HelpItem {
+    private String title;
+    private String content;
+    private String author;
+}
diff --git a/app/src/main/java/com/zane/smapiinstaller/entity/HelpItemList.java b/app/src/main/java/com/zane/smapiinstaller/entity/HelpItemList.java
new file mode 100644
index 0000000..fd049e6
--- /dev/null
+++ b/app/src/main/java/com/zane/smapiinstaller/entity/HelpItemList.java
@@ -0,0 +1,12 @@
+package com.zane.smapiinstaller.entity;
+
+import java.util.List;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class HelpItemList extends UpdatableList  {
+    private List<HelpItem> items;
+}
diff --git a/app/src/main/java/com/zane/smapiinstaller/entity/UpdatableList.java b/app/src/main/java/com/zane/smapiinstaller/entity/UpdatableList.java
new file mode 100644
index 0000000..b9fb782
--- /dev/null
+++ b/app/src/main/java/com/zane/smapiinstaller/entity/UpdatableList.java
@@ -0,0 +1,8 @@
+package com.zane.smapiinstaller.entity;
+
+import lombok.Data;
+
+@Data
+public class UpdatableList {
+    private int version;
+}
diff --git a/app/src/main/java/com/zane/smapiinstaller/logic/DownloadabeContentManager.java b/app/src/main/java/com/zane/smapiinstaller/logic/DownloadabeContentManager.java
deleted file mode 100644
index 8a24652..0000000
--- a/app/src/main/java/com/zane/smapiinstaller/logic/DownloadabeContentManager.java
+++ /dev/null
@@ -1,44 +0,0 @@
-package com.zane.smapiinstaller.logic;
-
-import android.view.View;
-
-import com.lzy.okgo.OkGo;
-import com.lzy.okgo.callback.StringCallback;
-import com.lzy.okgo.model.Response;
-import com.zane.smapiinstaller.constant.Constants;
-import com.zane.smapiinstaller.entity.DownloadableContentList;
-import com.zane.smapiinstaller.utils.FileUtils;
-import com.zane.smapiinstaller.utils.JSONUtil;
-
-public class DownloadabeContentManager {
-
-    private final View root;
-
-    private static final String TAG = "DLC_MGR";
-
-    private static boolean updateChecked = false;
-
-    private static DownloadableContentList downloadableContentList = null;
-
-    public DownloadabeContentManager(View root) {
-        this.root = root;
-        downloadableContentList = FileUtils.getAssetJson(root.getContext(), "downloadable_content_list.json", DownloadableContentList.class);
-        if(!updateChecked) {
-            updateChecked = true;
-            OkGo.<String>get(Constants.DLC_LIST_UPDATE_URL).execute(new StringCallback(){
-                @Override
-                public void onSuccess(Response<String> response) {
-                    DownloadableContentList content = JSONUtil.fromJson(response.body(), DownloadableContentList.class);
-                    if(content != null && downloadableContentList.getVersion() < content.getVersion()) {
-                        FileUtils.writeAssetJson(root.getContext(), "downloadable_content_list.json", content);
-                        downloadableContentList = content;
-                    }
-                }
-            });
-        }
-    }
-
-    public DownloadableContentList getDownloadableContentList() {
-        return downloadableContentList;
-    }
-}
diff --git a/app/src/main/java/com/zane/smapiinstaller/logic/GameLauncher.java b/app/src/main/java/com/zane/smapiinstaller/logic/GameLauncher.java
index 5725b7c..42a6801 100644
--- a/app/src/main/java/com/zane/smapiinstaller/logic/GameLauncher.java
+++ b/app/src/main/java/com/zane/smapiinstaller/logic/GameLauncher.java
@@ -6,6 +6,7 @@ import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.view.View;
 
+import com.microsoft.appcenter.crashes.Crashes;
 import com.zane.smapiinstaller.R;
 import com.zane.smapiinstaller.constant.Constants;
 
@@ -35,6 +36,9 @@ public class GameLauncher {
             });
         } catch (PackageManager.NameNotFoundException ignored) {
             CommonLogic.showAlertDialog(root, R.string.error, R.string.error_smapi_not_installed);
+        } catch (Exception e) {
+            Crashes.trackError(e);
+            CommonLogic.showAlertDialog(root, R.string.error, e.getLocalizedMessage());
         }
     }
 }
diff --git a/app/src/main/java/com/zane/smapiinstaller/logic/ModAssetsManager.java b/app/src/main/java/com/zane/smapiinstaller/logic/ModAssetsManager.java
index 8a43712..b4dd4cf 100644
--- a/app/src/main/java/com/zane/smapiinstaller/logic/ModAssetsManager.java
+++ b/app/src/main/java/com/zane/smapiinstaller/logic/ModAssetsManager.java
@@ -78,19 +78,25 @@ public class ModAssetsManager {
             File currentFile = files.poll();
             if (currentFile != null && currentFile.exists()) {
                 boolean foundManifest = false;
-                for (File file : currentFile.listFiles(File::isFile)) {
-                    if (StringUtils.equalsIgnoreCase(file.getName(), "manifest.json")) {
-                        ModManifestEntry manifest = FileUtils.getFileJson(file, ModManifestEntry.class);
-                        foundManifest = true;
-                        if (manifest != null) {
-                            manifest.setAssetPath(file.getParentFile().getAbsolutePath());
-                            mods.add(manifest);
+                File[] listFiles = currentFile.listFiles(File::isFile);
+                if(listFiles != null) {
+                    for (File file : listFiles) {
+                        if (StringUtils.equalsIgnoreCase(file.getName(), "manifest.json")) {
+                            ModManifestEntry manifest = FileUtils.getFileJson(file, ModManifestEntry.class);
+                            foundManifest = true;
+                            if (manifest != null && StringUtils.isNoneBlank(manifest.getUniqueID())) {
+                                manifest.setAssetPath(file.getParentFile().getAbsolutePath());
+                                mods.add(manifest);
+                            }
+                            break;
                         }
-                        break;
                     }
                 }
                 if (!foundManifest) {
-                    files.addAll(Lists.newArrayList(currentFile.listFiles(File::isDirectory)));
+                    File[] listDirectories = currentFile.listFiles(File::isDirectory);
+                    if(listDirectories != null) {
+                        files.addAll(Lists.newArrayList(listDirectories));
+                    }
                 }
             }
         } while (!files.isEmpty());
diff --git a/app/src/main/java/com/zane/smapiinstaller/logic/UpdatableListManager.java b/app/src/main/java/com/zane/smapiinstaller/logic/UpdatableListManager.java
new file mode 100644
index 0000000..fd58259
--- /dev/null
+++ b/app/src/main/java/com/zane/smapiinstaller/logic/UpdatableListManager.java
@@ -0,0 +1,50 @@
+package com.zane.smapiinstaller.logic;
+
+import android.view.View;
+
+import com.google.common.base.Predicate;
+import com.lzy.okgo.OkGo;
+import com.lzy.okgo.callback.StringCallback;
+import com.lzy.okgo.model.Response;
+import com.zane.smapiinstaller.entity.UpdatableList;
+import com.zane.smapiinstaller.utils.FileUtils;
+import com.zane.smapiinstaller.utils.JSONUtil;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class UpdatableListManager<T extends UpdatableList> {
+    private static boolean updateChecked = false;
+
+    private static UpdatableList updatableList = null;
+
+    private List<Predicate<T>> onChangedListener = new ArrayList<>();
+
+    public UpdatableListManager(View root, String filename, Class<T> tClass, String updateUrl) {
+        updatableList = FileUtils.getAssetJson(root.getContext(), filename, tClass);
+        if(!updateChecked) {
+            updateChecked = true;
+            OkGo.<String>get(updateUrl).execute(new StringCallback(){
+                @Override
+                public void onSuccess(Response<String> response) {
+                    UpdatableList content = JSONUtil.fromJson(response.body(), tClass);
+                    if(content != null && updatableList.getVersion() < content.getVersion()) {
+                        FileUtils.writeAssetJson(root.getContext(), filename, content);
+                        updatableList = content;
+                        for (Predicate<T> listener : onChangedListener) {
+                            listener.apply(getList());
+                        }
+                    }
+                }
+            });
+        }
+    }
+
+    public T getList() {
+        return (T) updatableList;
+    }
+
+    public void registerListChangeListener(Predicate<T> onChanged) {
+        this.onChangedListener.add(onChanged);
+    }
+}
diff --git a/app/src/main/java/com/zane/smapiinstaller/ui/download/DownloadableContentAdapter.java b/app/src/main/java/com/zane/smapiinstaller/ui/download/DownloadableContentAdapter.java
index a294458..c617891 100644
--- a/app/src/main/java/com/zane/smapiinstaller/ui/download/DownloadableContentAdapter.java
+++ b/app/src/main/java/com/zane/smapiinstaller/ui/download/DownloadableContentAdapter.java
@@ -39,7 +39,12 @@ import java.util.concurrent.atomic.AtomicReference;
  */
 public class DownloadableContentAdapter extends RecyclerView.Adapter<DownloadableContentAdapter.ViewHolder> {
 
-    private final List<DownloadableContent> downloadableContentList;
+    private List<DownloadableContent> downloadableContentList;
+
+    public void setDownloadableContentList(List<DownloadableContent> downloadableContentList) {
+        this.downloadableContentList = downloadableContentList;
+        notifyDataSetChanged();
+    }
 
     public DownloadableContentAdapter(List<DownloadableContent> items) {
         downloadableContentList = items;
@@ -62,7 +67,7 @@ public class DownloadableContentAdapter extends RecyclerView.Adapter<Downloadabl
         return downloadableContentList.size();
     }
 
-    public class ViewHolder extends RecyclerView.ViewHolder {
+    static class ViewHolder extends RecyclerView.ViewHolder {
         @BindView(R.id.text_item_type)
         TextView typeTextView;
         @BindView(R.id.text_item_name)
diff --git a/app/src/main/java/com/zane/smapiinstaller/ui/download/DownloadableContentFragment.java b/app/src/main/java/com/zane/smapiinstaller/ui/download/DownloadableContentFragment.java
index eb43e1f..dfe9a23 100644
--- a/app/src/main/java/com/zane/smapiinstaller/ui/download/DownloadableContentFragment.java
+++ b/app/src/main/java/com/zane/smapiinstaller/ui/download/DownloadableContentFragment.java
@@ -2,20 +2,19 @@ package com.zane.smapiinstaller.ui.download;
 
 import android.content.Context;
 import android.os.Bundle;
-
-import androidx.fragment.app.Fragment;
-import androidx.recyclerview.widget.DividerItemDecoration;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
 import com.zane.smapiinstaller.R;
+import com.zane.smapiinstaller.constant.Constants;
 import com.zane.smapiinstaller.entity.DownloadableContentList;
-import com.zane.smapiinstaller.logic.CommonLogic;
-import com.zane.smapiinstaller.logic.DownloadabeContentManager;
+import com.zane.smapiinstaller.logic.UpdatableListManager;
+
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.DividerItemDecoration;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
 
 /**
  * A fragment representing a list of Items.
@@ -39,8 +38,13 @@ public class DownloadableContentFragment extends Fragment {
             Context context = view.getContext();
             RecyclerView recyclerView = (RecyclerView) view;
             recyclerView.setLayoutManager(new LinearLayoutManager(context));
-            DownloadabeContentManager manager = new DownloadabeContentManager(view);
-            recyclerView.setAdapter(new DownloadableContentAdapter(manager.getDownloadableContentList().getContents()));
+            UpdatableListManager<DownloadableContentList> manager = new UpdatableListManager<>(view, "downloadable_content_list.json", DownloadableContentList.class, Constants.DLC_LIST_UPDATE_URL);
+            DownloadableContentAdapter adapter = new DownloadableContentAdapter(manager.getList().getContents());
+            recyclerView.setAdapter(adapter);
+            manager.registerListChangeListener((list) -> {
+                adapter.setDownloadableContentList(list.getContents());
+                return true;
+            });
             recyclerView.addItemDecoration(new DividerItemDecoration(recyclerView.getContext(), DividerItemDecoration.VERTICAL));
         }
         return view;
diff --git a/app/src/main/java/com/zane/smapiinstaller/ui/help/HelpFragment.java b/app/src/main/java/com/zane/smapiinstaller/ui/help/HelpFragment.java
index defef85..e0f2c89 100644
--- a/app/src/main/java/com/zane/smapiinstaller/ui/help/HelpFragment.java
+++ b/app/src/main/java/com/zane/smapiinstaller/ui/help/HelpFragment.java
@@ -8,7 +8,9 @@ import android.view.ViewGroup;
 
 import com.zane.smapiinstaller.R;
 import com.zane.smapiinstaller.constant.Constants;
+import com.zane.smapiinstaller.entity.HelpItemList;
 import com.zane.smapiinstaller.logic.CommonLogic;
+import com.zane.smapiinstaller.logic.UpdatableListManager;
 
 import java.io.File;
 
@@ -16,15 +18,31 @@ import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 import androidx.navigation.NavController;
 import androidx.navigation.Navigation;
+import androidx.recyclerview.widget.DividerItemDecoration;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 
 public class HelpFragment extends Fragment {
 
+    @BindView(R.id.view_help_list)
+    RecyclerView recyclerView;
+
     public View onCreateView(@NonNull LayoutInflater inflater,
                              ViewGroup container, Bundle savedInstanceState) {
         View root = inflater.inflate(R.layout.fragment_help, container, false);
         ButterKnife.bind(this, root);
+        recyclerView.setLayoutManager(new LinearLayoutManager(this.getContext()));
+        UpdatableListManager<HelpItemList> manager = new UpdatableListManager<>(root, "help_item_list.json", HelpItemList.class, Constants.HELP_LIST_UPDATE_URL);
+        HelpItemAdapter adapter = new HelpItemAdapter(manager.getList().getItems());
+        recyclerView.setAdapter(adapter);
+        manager.registerListChangeListener((list) -> {
+            adapter.setHelpItems(list.getItems());
+            return true;
+        });
+        recyclerView.addItemDecoration(new DividerItemDecoration(recyclerView.getContext(), DividerItemDecoration.VERTICAL));
         return root;
     }
     @OnClick(R.id.button_compat) void compat() {
diff --git a/app/src/main/java/com/zane/smapiinstaller/ui/help/HelpItemAdapter.java b/app/src/main/java/com/zane/smapiinstaller/ui/help/HelpItemAdapter.java
new file mode 100644
index 0000000..4403ac8
--- /dev/null
+++ b/app/src/main/java/com/zane/smapiinstaller/ui/help/HelpItemAdapter.java
@@ -0,0 +1,70 @@
+package com.zane.smapiinstaller.ui.help;
+
+import android.text.Html;
+import android.text.method.LinkMovementMethod;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.zane.smapiinstaller.R;
+import com.zane.smapiinstaller.entity.HelpItem;
+
+import java.util.List;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+import butterknife.BindView;
+import butterknife.ButterKnife;
+
+public class HelpItemAdapter extends RecyclerView.Adapter<HelpItemAdapter.ViewHolder>  {
+
+    public void setHelpItems(List<HelpItem> helpItems) {
+        this.helpItems = helpItems;
+        notifyDataSetChanged();
+    }
+
+    private List<HelpItem> helpItems;
+
+    public HelpItemAdapter(List<HelpItem> helpItems) {
+        this.helpItems = helpItems;
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.help_list_item, parent, false);
+        return new ViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        holder.setHelpItem(helpItems.get(position));
+    }
+
+    @Override
+    public int getItemCount() {
+        return helpItems.size();
+    }
+
+    static class ViewHolder extends RecyclerView.ViewHolder {
+        @BindView(R.id.text_item_title)
+        TextView textTitle;
+        @BindView(R.id.text_item_author)
+        TextView textAuthor;
+        @BindView(R.id.text_item_content)
+        TextView textContent;
+
+        public ViewHolder(View view) {
+            super(view);
+            ButterKnife.bind(this, itemView);
+        }
+        void setHelpItem(HelpItem item) {
+            textTitle.setText(item.getTitle());
+            textAuthor.setText(item.getAuthor());
+            textContent.setText(Html.fromHtml(item.getContent()));
+            textContent.setMovementMethod(LinkMovementMethod.getInstance());
+        }
+    }
+}
diff --git a/app/src/main/java/com/zane/smapiinstaller/ui/install/InstallFragment.java b/app/src/main/java/com/zane/smapiinstaller/ui/install/InstallFragment.java
index 763f15b..2dae933 100644
--- a/app/src/main/java/com/zane/smapiinstaller/ui/install/InstallFragment.java
+++ b/app/src/main/java/com/zane/smapiinstaller/ui/install/InstallFragment.java
@@ -10,6 +10,8 @@ import android.view.ViewGroup;
 import com.afollestad.materialdialogs.DialogAction;
 import com.afollestad.materialdialogs.GravityEnum;
 import com.afollestad.materialdialogs.MaterialDialog;
+import com.microsoft.appcenter.AppCenter;
+import com.microsoft.appcenter.crashes.Crashes;
 import com.zane.smapiinstaller.R;
 import com.zane.smapiinstaller.logic.ApkPatcher;
 import com.zane.smapiinstaller.logic.CommonLogic;
@@ -42,12 +44,11 @@ public class InstallFragment extends Fragment {
     void Install() {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
             CommonLogic.showConfirmDialog(root, R.string.confirm, R.string.android_version_confirm, ((dialog, which) -> {
-                if(which == DialogAction.POSITIVE) {
+                if (which == DialogAction.POSITIVE) {
                     installLogic();
                 }
             }));
-        }
-        else {
+        } else {
             installLogic();
         }
     }
@@ -95,7 +96,12 @@ public class InstallFragment extends Fragment {
                     patcher.install(signPath);
                     dialog.incrementProgress(1);
 
-                } finally {
+                }
+                catch (Exception e) {
+                    Crashes.trackError(e);
+                    CommonLogic.showAlertDialog(root, R.string.error, e.getLocalizedMessage());
+                }
+                finally {
                     if (!dialog.isCancelled()) {
                         dialog.dismiss();
                     }
diff --git a/app/src/main/res/layout/fragment_about.xml b/app/src/main/res/layout/fragment_about.xml
index 449c32d..fa94441 100644
--- a/app/src/main/res/layout/fragment_about.xml
+++ b/app/src/main/res/layout/fragment_about.xml
@@ -74,7 +74,7 @@
             app:layout_constraintStart_toStartOf="parent"
             app:srcCompat="@drawable/ic_menu_share"
             android:contentDescription="@string/icon_desc" />
-        <TextView
+        <Button
             android:id="@+id/button_release"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
@@ -82,6 +82,7 @@
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintStart_toEndOf="@id/img_test"
             app:layout_constraintEnd_toEndOf="parent"
+            style="@style/Widget.AppCompat.Button.Borderless"
             android:gravity="center"
             android:textSize="24sp"
             android:text="@string/button_release" />
diff --git a/app/src/main/res/layout/fragment_config.xml b/app/src/main/res/layout/fragment_config.xml
index 490382d..a5d3336 100644
--- a/app/src/main/res/layout/fragment_config.xml
+++ b/app/src/main/res/layout/fragment_config.xml
@@ -8,6 +8,7 @@
 
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/view_mod_list"
+        app:layoutManager="LinearLayoutManager"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
     </androidx.recyclerview.widget.RecyclerView>
diff --git a/app/src/main/res/layout/fragment_help.xml b/app/src/main/res/layout/fragment_help.xml
index 17d535b..a918fad 100644
--- a/app/src/main/res/layout/fragment_help.xml
+++ b/app/src/main/res/layout/fragment_help.xml
@@ -30,6 +30,15 @@
         app:layout_constraintTop_toBottomOf="@id/guideline_h1"
         app:layout_constraintStart_toEndOf="@id/button_nexus" />
 
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/view_help_list"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10dp"
+        app:layout_constraintStart_toEndOf="@id/guideline_v1"
+        app:layout_constraintEnd_toStartOf="@id/guideline_v2"
+        app:layout_constraintTop_toBottomOf="@id/button_compat"/>
+
     <androidx.constraintlayout.widget.Guideline
         android:id="@+id/guideline_h1"
         android:layout_width="wrap_content"
@@ -37,10 +46,25 @@
         android:orientation="horizontal"
         app:layout_constraintGuide_begin="20dp" />
 
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/guideline_h2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_end="60dp" />
+
     <androidx.constraintlayout.widget.Guideline
         android:id="@+id/guideline_v1"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:orientation="vertical"
         app:layout_constraintGuide_begin="20dp" />
+
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/guideline_v2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        app:layout_constraintGuide_end="20dp" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/help_list_item.xml b/app/src/main/res/layout/help_list_item.xml
new file mode 100644
index 0000000..0bb3ff1
--- /dev/null
+++ b/app/src/main/res/layout/help_list_item.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:divider="@drawable/horizontal_divider"
+    android:showDividers="middle"
+    android:orientation="vertical">
+    <RelativeLayout
+        android:background="@color/colorTitle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+        <TextView
+            android:id="@+id/text_item_title"
+            android:textSize="16sp"
+            android:layout_alignParentStart="true"
+            android:layout_toStartOf="@id/text_item_author"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"/>
+
+        <TextView
+            android:id="@+id/text_item_author"
+            app:layout_constraintTop_toTopOf="parent"
+            android:layout_alignParentEnd="true"
+            android:textSize="12sp"
+            android:paddingTop="2sp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"/>
+    </RelativeLayout>
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/text_item_content"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+    </com.google.android.material.textview.MaterialTextView>
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values-zh-rHK/strings.xml b/app/src/main/res/values-zh-rHK/strings.xml
index 8588dff..ed31801 100644
--- a/app/src/main/res/values-zh-rHK/strings.xml
+++ b/app/src/main/res/values-zh-rHK/strings.xml
@@ -1,7 +1,5 @@
 <resources>
     <string name="app_name">SMAPI安裝器</string>
-    <string name="navigation_drawer_open">Open navigation drawer</string>
-    <string name="navigation_drawer_close">Close navigation drawer</string>
     <string name="nav_header_title">SMAPI安裝器</string>
     <string name="nav_header_subtitle">ZaneYork@qq.com</string>
     <string name="action_settings">設置</string>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 8588dff..ed31801 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -1,7 +1,5 @@
 <resources>
     <string name="app_name">SMAPI安裝器</string>
-    <string name="navigation_drawer_open">Open navigation drawer</string>
-    <string name="navigation_drawer_close">Close navigation drawer</string>
     <string name="nav_header_title">SMAPI安裝器</string>
     <string name="nav_header_subtitle">ZaneYork@qq.com</string>
     <string name="action_settings">設置</string>
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh/strings.xml
index ed36576..f5f5fe7 100644
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -1,7 +1,5 @@
 <resources>
     <string name="app_name">SMAPI安装器</string>
-    <string name="navigation_drawer_open">Open navigation drawer</string>
-    <string name="navigation_drawer_close">Close navigation drawer</string>
     <string name="nav_header_title">SMAPI安装器</string>
     <string name="nav_header_subtitle">ZaneYork@qq.com</string>
     <string name="action_settings">设置</string>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 030098f..8423202 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -3,4 +3,5 @@
     <color name="colorPrimary">#6200EE</color>
     <color name="colorPrimaryDark">#3700B3</color>
     <color name="colorAccent">#03DAC5</color>
+    <color name="colorTitle">#8BD</color>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 683ca25..73d341e 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,7 +1,5 @@
 <resources>
     <string name="app_name">SMAPI Installer</string>
-    <string name="navigation_drawer_open">Open navigation drawer</string>
-    <string name="navigation_drawer_close">Close navigation drawer</string>
     <string name="nav_header_title">SMAPI Installer</string>
     <string name="nav_header_subtitle">ZaneYork@qq.com</string>
     <string name="action_settings">Settings</string>
diff --git a/app/src/main/res/xml/appcenter_backup_rule.xml b/app/src/main/res/xml/appcenter_backup_rule.xml
new file mode 100644
index 0000000..b76e607
--- /dev/null
+++ b/app/src/main/res/xml/appcenter_backup_rule.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<full-backup-content xmlns:tools="http://schemas.android.com/tools">
+    <exclude domain="sharedpref" path="AppCenter.xml"/>
+    <exclude domain="database" path="com.microsoft.appcenter.persistence"/>
+    <exclude domain="database" path="com.microsoft.appcenter.persistence-journal"/>
+    <exclude domain="file" path="error" tools:ignore="FullBackupContent"/>
+    <exclude domain="file" path="appcenter" tools:ignore="FullBackupContent"/>
+</full-backup-content>
\ No newline at end of file