diff --git a/android/build.gradle b/android/build.gradle
index ed193d5..0dfb173 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -65,10 +65,10 @@ android {
     disable "GradleCompatible"
   }
 
-  compileOptions {
-    sourceCompatibility JavaVersion.VERSION_1_8
-    targetCompatibility JavaVersion.VERSION_1_8
-  }
+//  compileOptions {
+//    sourceCompatibility JavaVersion.VERSION_1_8
+//    targetCompatibility JavaVersion.VERSION_1_8
+//  }
 }
 
 repositories {
diff --git a/android/src/main/java/com/device/comm/mylibrary/BleDeviceManager.java b/android/src/main/java/com/device/comm/mylibrary/BleDeviceManager.java
index 972afde..10d0d09 100755
--- a/android/src/main/java/com/device/comm/mylibrary/BleDeviceManager.java
+++ b/android/src/main/java/com/device/comm/mylibrary/BleDeviceManager.java
@@ -443,11 +443,11 @@ public class BleDeviceManager {
 
 //        mDiscoverListener = discoverListener;
 
-        if (mClassicDeviceManager != null) {
-            mClassicDeviceManager.stopScan();
-        }
+//        if (mClassicDeviceManager != null) {
+//            mClassicDeviceManager.stopScan();
+//        }
 
-        mBleScanEnable = true;
+        mBleScanEnable = false;
         if (mHeartTimer != null) {
             return;
         }