diff --git a/backend/SystemUpdater/UpdateManagerDbus.py b/backend/SystemUpdater/UpdateManagerDbus.py
index 7b046e1..dfe7477 100755
--- a/backend/SystemUpdater/UpdateManagerDbus.py
+++ b/backend/SystemUpdater/UpdateManagerDbus.py
@@ -204,25 +204,16 @@ class UpdateManagerDbusController(dbus.service.Object):
             logging.error(False, str(e))
             return (False, str(e))
     
-    # # 操作数据库的接口
-    # @dbus.service.method(UPDATER_DBUS_INTERFACE, out_signature='b')
-    # def DataBaseOpt(self, action='check',table='', cid=19):
-    #     if action == 'check':
-    #         try:
-    #             self.parent.sqlite3_server.find_msg_from_datebase(action, table, cid)
-    #         except Exception as e:
-    #             logging.error(str(e))
-    #             return False
-    #     return True
-    
     # dbus接口：向数据库display表中插入数据
     @dbus.service.method(UPDATER_DBUS_INTERFACE, in_signature='ss', sender_keyword='sender')
     def InsertInstallState(self, item, value, sender=None):
         try:
             self.parent.sqlite3_server.insert_into_display(item, value)
             logging.info("Database inserted successfully，options：%s，value：%s" % (item, value))
+            return True
         except Exception as e:
             logging.error("Database insert failed，options：%s，value：%s" % (item, value))
+            return False
     
     # # download certain package and its dependencies
     @dbus.service.method(UPDATER_DBUS_INTERFACE, in_signature='asi', out_signature='b')
@@ -238,9 +229,7 @@ class UpdateManagerDbusController(dbus.service.Object):
             times -= 1
         return True
     
-    #
-    # dbus接口：改变apt下载速度
-    #
+    # # dbus接口：改变apt下载速度
     @dbus.service.method(UPDATER_DBUS_INTERFACE, in_signature='sb')
     def SetDownloadspeedMax(self, speed, set):
         if set:
@@ -255,9 +244,7 @@ class UpdateManagerDbusController(dbus.service.Object):
             else:
                 return False
 
-    #
-    # dbus接口：获取apt下载速度
-    #
+    # # dbus接口：获取apt下载速度
     @dbus.service.method(UPDATER_DBUS_INTERFACE, out_signature='bs')
     def GetDownloadspeedLimitValue(self):
         try: