diff --git a/头罩视野slove/头罩视野/Views/PageTest.xaml.cs b/头罩视野slove/头罩视野/Views/PageTest.xaml.cs
index f2986c7..d8a4484 100644
--- a/头罩视野slove/头罩视野/Views/PageTest.xaml.cs
+++ b/头罩视野slove/头罩视野/Views/PageTest.xaml.cs
@@ -1017,7 +1017,7 @@ namespace 头罩视野.Views
 
             try
             {
-                string portName = "COM5";
+                string portName = "COM3";
                 int baudRate = 9600;
                 Parity parity = Parity.None;
                 int dataBits = 8;