diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/HomeActivity.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/HomeActivity.kt
index 6ad9454..5af77f8 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/HomeActivity.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/HomeActivity.kt
@@ -169,7 +169,7 @@ class HomeActivity : NoOptionsActivity() {
                 if (!AppData.hasCameraData()) View.VISIBLE else View.GONE
 //            val errorRes =
 //                if (!AppData.hasCameraData() && !AppData.hasSensorData()) R.drawable.ic_nosingal else R.drawable.ic_icon
-            val errorRes = R.drawable.ic_nosingal
+            val errorRes = R.drawable.ic_icon
             mBinding.errorView.setImageResource(errorRes)
         }
     }
diff --git a/app/src/main/res/drawable-hdpi/ic_icon.png b/app/src/main/res/drawable-hdpi/ic_icon.png
index 442829c..dd7475e 100644
Binary files a/app/src/main/res/drawable-hdpi/ic_icon.png and b/app/src/main/res/drawable-hdpi/ic_icon.png differ
diff --git a/app/src/main/res/drawable-hdpi/ic_nosingal.png b/app/src/main/res/drawable-hdpi/ic_nosingal.png
deleted file mode 100644
index f8afda3..0000000
Binary files a/app/src/main/res/drawable-hdpi/ic_nosingal.png and /dev/null differ
diff --git a/app/src/main/res/layout/activity_home.xml b/app/src/main/res/layout/activity_home.xml
index 3952ac5..e745bf5 100644
--- a/app/src/main/res/layout/activity_home.xml
+++ b/app/src/main/res/layout/activity_home.xml
@@ -14,7 +14,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:scaleType="fitXY"
-        android:src="@drawable/ic_nosingal"/>
+        android:src="@drawable/ic_icon"/>
 
     <ImageView
         android:id="@+id/tip_View"