diff --git a/app/scanner/mainwindow.h b/app/scanner/mainwindow.h
index a895b2da..abbb4f57 100644
--- a/app/scanner/mainwindow.h
+++ b/app/scanner/mainwindow.h
@@ -59,7 +59,7 @@ struct FwUpgradeAndDevLock
     FwUpgradeAndDevLock(const std::string &devName)
     {
         m_devName = devName;
-        m_checkFlag = DevLock;
+        m_checkFlag = 0;
         m_handleFlag = 0;
     }