diff --git a/napi/settings/napi_settings.cpp b/napi/settings/napi_settings.cpp
index bab2d13a9eb4101a80892971675d3124a5076af4..2ba7e7dec0a541e1fa1fdf56fc7a648a8205dcf6 100644
--- a/napi/settings/napi_settings.cpp
+++ b/napi/settings/napi_settings.cpp
@@ -1137,7 +1137,7 @@ napi_value napi_set_value_sync(napi_env env, napi_callback_info info)
     }
 
     std::string argsName = unwrap_string_from_js(env, args[PARAM1]);
-    std::string argsDefaultValue = unwrap_string_from_js(env, args[PARAM2]);
+    std::string argsDefaultValue = unwrap_string_from_js(env, args[PARAM2], true, true);
 
     OHOS::NativeRdb::ValuesBucket val;
     val.PutString(SETTINGS_DATA_FIELD_KEYWORD, argsName);
@@ -1406,7 +1406,7 @@ napi_value napi_set_value(napi_env env, napi_callback_info info)
     }
 	
     asyncCallbackInfo->key = unwrap_string_from_js(env, args[PARAM1]);
-    asyncCallbackInfo->value = unwrap_string_from_js(env, args[PARAM2]);
+    asyncCallbackInfo->value = unwrap_string_from_js(env, args[PARAM2], true, true);
     SETTING_LOG_INFO("set  input param is : (key %{public}s, value %{public}s)",
         asyncCallbackInfo->key.c_str(), asyncCallbackInfo->value.c_str());
 
diff --git a/napi/settings/napi_settings_init.cpp b/napi/settings/napi_settings_init.cpp
index 2b654ffb713bb84f308edc33140d1df2e36983ff..d7f5cccc215eea28b11f472f6b9bf0aa0c9d1522 100644
--- a/napi/settings/napi_settings_init.cpp
+++ b/napi/settings/napi_settings_init.cpp
@@ -175,7 +175,7 @@ const std::string Date::TIME_FORMAT = "settings.date.time_format";
 const std::string Date::AUTO_GAIN_TIME = "settings.date.auto_gain_time";
 const std::string Date::AUTO_GAIN_TIME_ZONE = "settings.date.auto_gain_time_zone";
 
-const std::string Display::FONT_SCALE = "settings.display.font_scale";
+const std::string Display::FONT_SCALE = "font_scale";
 const std::string Display::SCREEN_BRIGHTNESS_STATUS = "settings.display.screen_brightness_status";
 const std::string Display::AUTO_SCREEN_BRIGHTNESS = "settings.display.auto_screen_brightness";
 const int Display::AUTO_SCREEN_BRIGHTNESS_MODE = 1;
diff --git a/product/phone/src/main/ets/pages/abilityDialog/BluetoothDialog.ets b/product/phone/src/main/ets/pages/abilityDialog/BluetoothDialog.ets
index 1fcc5fc1a8719d6a010936805d50828a1b117c30..23c7d1a6c78fc2ac302e6b702d05bb5c5061c61f 100644
--- a/product/phone/src/main/ets/pages/abilityDialog/BluetoothDialog.ets
+++ b/product/phone/src/main/ets/pages/abilityDialog/BluetoothDialog.ets
@@ -29,9 +29,13 @@ struct BluetoothSwitchWindowDialog {
     autoCancel: true,
     customStyle: true,
     cancel: () => {
-      let dialogSession: UIExtensionContentSession | undefined =
-        AppStorage.get<UIExtensionContentSession>('accessibilityDialogSession');
-      dialogSession?.terminateSelf();
+      try {
+        let dialogSession: UIExtensionContentSession | undefined =
+          AppStorage.get<UIExtensionContentSession>('accessibilityDialogSession');
+        dialogSession?.terminateSelf();
+      } catch(err) {
+        LogUtil.error('settings: bluetoothSwitchDialog cancel err:' + err?.message);
+      }
     }
   });
 
@@ -152,9 +156,14 @@ struct BluetoothSwitchDialog {
   onDialogClose(): void {
     LogUtil.info(`${TAG} onDialogClose in`);
     this.controller?.close();
-    let dialogSession: UIExtensionContentSession | undefined =
-      AppStorage.get<UIExtensionContentSession>('accessibilityDialogSession');
-    dialogSession?.terminateSelf();
+    try {
+      let dialogSession: UIExtensionContentSession | undefined =
+        AppStorage.get<UIExtensionContentSession>('accessibilityDialogSession');
+      dialogSession?.terminateSelf();
+    } catch(err) {
+      LogUtil.error('settings: bluetoothSwitchDialog onDialogClose err:' + err?.message);
+    }
+
   }
 
   aboutToAppear(): void {