diff --git a/lib/common/io/rs_http.dart b/lib/common/io/rs_http.dart
index fb987bf..8dd3a3a 100644
--- a/lib/common/io/rs_http.dart
+++ b/lib/common/io/rs_http.dart
@@ -14,10 +14,16 @@ class RSHttp {
     });
   }
 
-  static Future<String> getText(String url,
+  static Future<RustHttpResponse> get(String url,
       {Map<String, String>? headers}) async {
     final r = await rust_http.fetch(
         method: MyMethod.gets, url: url, headers: headers);
+    return r;
+  }
+
+  static Future<String> getText(String url,
+      {Map<String, String>? headers}) async {
+    final r = await get(url, headers: headers);
     if (r.data == null) return "";
     final str = utf8.decode(r.data!);
     return str;
diff --git a/lib/ui/home/dialogs/md_content_dialog_ui_model.dart b/lib/ui/home/dialogs/md_content_dialog_ui_model.dart
index 7029dfb..11e03da 100644
--- a/lib/ui/home/dialogs/md_content_dialog_ui_model.dart
+++ b/lib/ui/home/dialogs/md_content_dialog_ui_model.dart
@@ -1,5 +1,5 @@
-import 'package:dio/dio.dart';
 import 'package:starcitizen_doctor/base/ui_model.dart';
+import 'package:starcitizen_doctor/common/io/rs_http.dart';
 
 class MDContentDialogUIModel extends BaseUIModel {
   String title;
@@ -11,9 +11,9 @@ class MDContentDialogUIModel extends BaseUIModel {
 
   @override
   Future loadData() async {
-    final r = await handleError(() => Dio().get(url));
+    final r = await handleError(() => RSHttp.getText(url));
     if (r == null) return;
-    data = r.data;
+    data = r;
     notifyListeners();
   }
 }
diff --git a/lib/ui/home/localization/localization_ui_model.dart b/lib/ui/home/localization/localization_ui_model.dart
index 0341ac1..f93070e 100644
--- a/lib/ui/home/localization/localization_ui_model.dart
+++ b/lib/ui/home/localization/localization_ui_model.dart
@@ -2,7 +2,6 @@ import 'dart:async';
 import 'dart:io';
 
 import 'package:archive/archive_io.dart';
-import 'package:dio/dio.dart';
 import 'package:flutter/foundation.dart';
 import 'package:starcitizen_doctor/api/analytics.dart';
 import 'package:starcitizen_doctor/api/api.dart';
@@ -10,6 +9,7 @@ import 'package:starcitizen_doctor/base/ui_model.dart';
 import 'package:starcitizen_doctor/common/conf/app_conf.dart';
 import 'package:starcitizen_doctor/common/conf/url_conf.dart';
 import 'package:starcitizen_doctor/common/helper/system_helper.dart';
+import 'package:starcitizen_doctor/common/io/rs_http.dart';
 import 'package:starcitizen_doctor/data/sc_localization_data.dart';
 import 'package:url_launcher/url_launcher_string.dart';
 
@@ -145,7 +145,12 @@ class LocalizationUIModel extends BaseUIModel {
         if (!await savePath.exists()) {
           // download
           dPrint("downloading file to $savePath");
-          await Dio().download(downloadUrl, savePath.absolute.path);
+          final r = await RSHttp.get(downloadUrl);
+          if (r.statusCode == 200 && r.data != null) {
+            await savePath.writeAsBytes(r.data!);
+          } else {
+            throw "statusCode Error : ${r.statusCode}";
+          }
         } else {
           dPrint("use cache $savePath");
         }
diff --git a/lib/ui/tools/tools_ui_model.dart b/lib/ui/tools/tools_ui_model.dart
index 249b4b0..5bd8a0b 100644
--- a/lib/ui/tools/tools_ui_model.dart
+++ b/lib/ui/tools/tools_ui_model.dart
@@ -1,7 +1,6 @@
 import 'dart:convert';
 import 'dart:io';
 
-import 'package:dio/dio.dart';
 import 'package:flutter/foundation.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 import 'package:hive/hive.dart';
@@ -416,8 +415,6 @@ class ToolsUIModel extends BaseUIModel {
     if (r != null) {
       if (r == "cancel") {
         return showToast(context!, "下载进度已保留，您可以再次点击此功能恢复下载。");
-      } else if (r is DioException) {
-        showToast(context!, "下载失败：$r");
       } else {
         final ok = await showConfirmDialogs(
             context!, "下载完毕！", Text("文件已保存到：$r\n\n是否查看P4K操作教程？"));