diff --git a/src/services/ConfigService.ts b/src/services/ConfigService.ts
index 66dac82..4976b9e 100644
--- a/src/services/ConfigService.ts
+++ b/src/services/ConfigService.ts
@@ -158,36 +158,6 @@ export default class ConfigService {
         await status.edit({ text: '正在创建 Telegram 群…', buttons: Button.clear() });
       }
 
-      if (!chat) {
-        // 创建群聊，拿到的是 user 的 chat
-        chat = await this.tgUser.createChat(title, await getAboutText(room, false));
-
-        // 添加机器人
-        status && await status.edit({ text: '正在添加机器人…' });
-        await chat.inviteMember(this.tgBot.me.id);
-      }
-
-      // 设置管理员
-      status && await status.edit({ text: '正在设置管理员…' });
-      await chat.setAdmin(this.tgBot.me.username);
-
-      // 添加到 Filter
-      try {
-        status && await status.edit({ text: '正在将群添加到文件夹…' });
-        const dialogFilters = await this.tgUser.getDialogFilters() as Api.DialogFilter[];
-        const filter = dialogFilters.find(e => e.id === DEFAULT_FILTER_ID);
-        if (filter) {
-          filter.includePeers.push(utils.getInputPeer(chat));
-          await this.tgUser.updateDialogFilter({
-            id: DEFAULT_FILTER_ID,
-            filter,
-          });
-        }
-      }
-      catch (e) {
-        errorMessage += `\n添加到文件夹失败：${e.message}`;
-      }
-
       // 关闭【添加成员】快捷条
       try {
         status && await status.edit({ text: '正在关闭【添加成员】快捷条…' });
@@ -270,56 +240,7 @@ export default class ConfigService {
       }
     }
     else {
-      const chat = await this.tgUser.getChat(tgChatId);
-      await this.createGroupAndLink(qqRoomId, undefined, true, chat);
-    }
-  }
-
-  // 创建 QQ 群组的文件夹
-  public async setupFilter() {
-    const result = await this.tgUser.getDialogFilters() as Api.DialogFilter[];
-    let filter = result.find(e => e.id === DEFAULT_FILTER_ID);
-    if (!filter) {
-      this.log.info('创建 TG 文件夹');
-      // 要自己计算新的 id，随意 id 也是可以的
-      // https://github.com/morethanwords/tweb/blob/7d646bc9a87d943426d831f30b69d61b743f51e0/src/lib/storages/filters.ts#L251
-      // 创建
-      filter = new Api.DialogFilter({
-        id: DEFAULT_FILTER_ID,
-        title: 'QQ',
-        pinnedPeers: [
-          (await this.tgUser.getChat(this.tgBot.me.username)).inputPeer,
-        ],
-        includePeers: [],
-        excludePeers: [],
-        emoticon: '🐧',
-      });
-      let errorText = '设置文件夹失败';
-      try {
-        const isSuccess = await this.tgUser.updateDialogFilter({
-          id: DEFAULT_FILTER_ID,
-          filter,
-        });
-        if (!isSuccess) {
-          this.log.error(errorText);
-          await (await this.owner).sendMessage(errorText);
-        }
-      }
-      catch (e) {
-        this.log.error(errorText, e);
-        await (await this.owner).sendMessage(errorText + `\n<code>${e}</code>`);
-      }
-    }
-  }
-
-  public async migrateAllChats() {
-    const dbPairs = await db.forwardPair.findMany();
-    for (const forwardPair of dbPairs) {
-      const chatForUser = await this.tgUser.getChat(Number(forwardPair.tgChatId));
-      if (chatForUser.entity instanceof Api.Chat) {
-        this.log.info('升级群组 ', chatForUser.id);
-        await chatForUser.migrate();
-      }
+      const chat = await tgChat = await this.tgBot.getChat(tgChatId);
     }
   }
 }