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 10d0d09..91f94ac 100755
--- a/android/src/main/java/com/device/comm/mylibrary/BleDeviceManager.java
+++ b/android/src/main/java/com/device/comm/mylibrary/BleDeviceManager.java
@@ -7,6 +7,7 @@ import android.bluetooth.BluetoothManager;
 import android.bluetooth.le.BluetoothLeScanner;
 import android.bluetooth.le.ScanCallback;
 import android.bluetooth.le.ScanResult;
+import android.bluetooth.le.ScanSettings;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -858,13 +859,15 @@ public class BleDeviceManager {
 
 //    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
     private boolean/* _Mode */startNativeScan() {
-//        RNLog.d(TAG,"start  native scan:");
+        //RNLog.d(TAG,"start  native scan:");
         BluetoothLeScanner scanner = mBluetoothAdapter.getBluetoothLeScanner();
         if(scanner == null){
             return false;
         }
-//        RNLog.d(TAG,"start scan:");
-        scanner.startScan(mDeviceListener.scanCallback);
+        //RNLog.d(TAG,"start scan:");
+        //scanner.startScan(mDeviceListener.scanCallback);
+        ScanSettings scannerSetting = new ScanSettings.Builder().setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY).build();
+        scanner.startScan(null,scannerSetting,mDeviceListener.scanCallback);
         return true;
     }