diff --git a/app/HGProductionTool/dialog_inputserialnum.cpp b/app/HGProductionTool/dialog_inputserialnum.cpp
index aa8222a..16e3239 100644
--- a/app/HGProductionTool/dialog_inputserialnum.cpp
+++ b/app/HGProductionTool/dialog_inputserialnum.cpp
@@ -312,8 +312,14 @@ void Dialog_InputSerialNum::updateCurDeviceCfg()
     int sleepTime = getSleepTime();
     int vid_to = getDevVid();
     int pid_to = getDevPid();
-    QString devideModel = getDeviceModel();
 
+    AnalysisJson analysisJson(m_profileName);
+    AnalysisJson::json_global jsonGlobal = analysisJson.GetGlobal();
+    QString devideModel("");
+    if (!jsonGlobal.device_model.isEmpty())
+    {
+        devideModel = getDeviceModel();
+    }
     char buf[10];
     sprintf(buf, "%x", vid_to);