diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/MainActivity.java b/mpmaster/src/main/java/com/xypower/mpmaster/MainActivity.java
index 90285c89..7d4f55a8 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/MainActivity.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/MainActivity.java
@@ -106,6 +106,7 @@ public class MainActivity extends AppCompatActivity {
             }
         });
 
+        /*
         findViewById(R.id.btnTurn485On).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
@@ -136,6 +137,8 @@ public class MainActivity extends AppCompatActivity {
             }
         });
 
+         */
+
         findViewById(R.id.sendsms).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
diff --git a/mpmaster/src/main/res/layout/activity_main.xml b/mpmaster/src/main/res/layout/activity_main.xml
index 601bfd40..7240e2e4 100644
--- a/mpmaster/src/main/res/layout/activity_main.xml
+++ b/mpmaster/src/main/res/layout/activity_main.xml
@@ -71,6 +71,7 @@
         android:layout_marginStart="12dp"
         android:layout_marginTop="12dp"
         android:text="485 On"
+        android:visibility="gone"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/btnTurnAppOn" />
 
@@ -80,6 +81,7 @@
         android:layout_height="wrap_content"
         android:layout_marginStart="12dp"
         android:text="485 Off"
+        android:visibility="gone"
         app:layout_constraintStart_toEndOf="@+id/btnTurn485On"
         app:layout_constraintTop_toTopOf="@+id/btnTurn485On" />
 
@@ -89,6 +91,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="485Read"
+        android:visibility="gone"
         app:layout_constraintStart_toEndOf="@+id/btnTurn485Off"
         app:layout_constraintTop_toTopOf="@+id/btnTurn485On" />