diff --git a/lib/http/member.dart b/lib/http/member.dart
index bf84b6eb..0031ab6d 100644
--- a/lib/http/member.dart
+++ b/lib/http/member.dart
@@ -1,3 +1,6 @@
+import 'dart:convert';
+import 'dart:math';
+
 import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:hive/hive.dart';
 import '../common/constants.dart';
@@ -79,6 +82,8 @@ class MemberHttp {
     String order = 'pubdate',
     bool orderAvoided = true,
   }) async {
+    String dmImgStr = Utils.base64EncodeRandomString(16, 64);
+    String dmCoverImgStr = Utils.base64EncodeRandomString(32, 128);
     Map params = await WbiSign().makSign({
       'mid': mid,
       'ps': ps,
@@ -88,12 +93,15 @@ class MemberHttp {
       'order': order,
       'platform': 'web',
       'web_location': 1550101,
-      'order_avoided': orderAvoided
+      'order_avoided': orderAvoided,
+      'dm_img_list': '[]',
+      'dm_img_str': dmImgStr.substring(0, dmImgStr.length - 2),
+      'dm_cover_img_str': dmCoverImgStr.substring(0, dmCoverImgStr.length - 2),
     });
     var res = await Request().get(
       Api.memberArchive,
       data: params,
-      extra: {'ua': 'pc'},
+      extra: {'ua': 'Mozilla/5.0'},
     );
     if (res.data['code'] == 0) {
       return {
diff --git a/lib/utils/utils.dart b/lib/utils/utils.dart
index bb4aaa93..27aae06b 100644
--- a/lib/utils/utils.dart
+++ b/lib/utils/utils.dart
@@ -338,4 +338,17 @@ class Utils {
 
     return md5String;
   }
+
+  static String generateRandomString(int minLength, int maxLength) {
+    const String printable = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#\$%&\'()*+,-./:;<=>?@[\\]^_`{|}~ ';
+
+    var random = Random();
+    int length = minLength + random.nextInt(maxLength - minLength + 1);
+    return List<String>.generate(length, (index) => printable[random.nextInt(printable.length)]).join();
+  }
+
+  static String base64EncodeRandomString(int minLength, int maxLength) {
+    String randomString = generateRandomString(minLength, maxLength);
+    return base64.encode(utf8.encode(randomString));
+  }
 }
diff --git a/lib/utils/wbi_sign.dart b/lib/utils/wbi_sign.dart
index 4f831f16..5da75da1 100644
--- a/lib/utils/wbi_sign.dart
+++ b/lib/utils/wbi_sign.dart
@@ -80,7 +80,7 @@ class WbiSign {
   String getMixinKey(String orig) {
     String temp = '';
     for (int i = 0; i < mixinKeyEncTab.length; i++) {
-      temp += orig.split('')[mixinKeyEncTab[i]];
+      temp += orig[mixinKeyEncTab[i]];
     }
     return temp.substring(0, 32);
   }
@@ -104,7 +104,7 @@ class WbiSign {
     final String queryStr = query.join('&');
     final String wbiSign =
         md5.convert(utf8.encode(queryStr + mixinKey)).toString(); // 计算 w_rid
-    return {'wts': currTime.toString(), 'w_rid': wbiSign};
+    return {'w_rid': wbiSign,'wts': currTime.toString()};
   }
 
   // 获取最新的 img_key 和 sub_key 可以从缓存中获取