diff --git a/.idea/misc.xml b/.idea/misc.xml
index 74dd639..b2c751a 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
   <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">
diff --git a/app/src/main/java/com/serverapk/i9_bl_test/ReadCardActivity.java b/app/src/main/java/com/serverapk/i9_bl_test/ReadCardActivity.java
index 76f467b..229ece2 100644
--- a/app/src/main/java/com/serverapk/i9_bl_test/ReadCardActivity.java
+++ b/app/src/main/java/com/serverapk/i9_bl_test/ReadCardActivity.java
@@ -44,7 +44,7 @@ import java.util.concurrent.TimeUnit;
  * @author JoeAllen
  */
 public class ReadCardActivity extends AppCompatActivity {
-    private static final String TAG = "MainActivity";
+    private static final String TAG = "ReadCardActivity";
     public String errMsg, readerErrMsg, mac, tusn, appVersion, kernelVersion, tradeData, money = "1", countryCode = "0702", currencyCode = "0702", cardNum;
     Handler handler = new Handler(Looper.getMainLooper());
     private BluetoothAdapter mBluetoothAdapter;
@@ -80,6 +80,9 @@ public class ReadCardActivity extends AppCompatActivity {
 
 
                 Log.d(TAG, "tradeDataStr: " + tradeDataStr);
+                if(mBluetoothController==null){
+                    return;
+                }
                 mBluetoothController.startEmvProcess(50, Util.HexToBin(tradeDataStr.toString()));
 
             } catch (Exception e) {
@@ -106,7 +109,7 @@ public class ReadCardActivity extends AppCompatActivity {
             mBluetoothLeService = ((BluetoothLeService.LocalBinder) service).getService();
             if (!mBluetoothLeService.initialize()) {
                 Log.e(TAG, "无法初始化蓝牙");
-                finish();
+                mBluetoothController.stopTrade();
                 return;
             }
 
@@ -116,6 +119,11 @@ public class ReadCardActivity extends AppCompatActivity {
                         public void connected() {
                             isConnected = true;
                             Log.d(TAG, "connected1==========");
+                            try {
+                                Thread.sleep(200);
+                            } catch (InterruptedException e) {
+                                throw new RuntimeException(e);
+                            }
                             beginReadCard();
                         }
 
@@ -141,7 +149,7 @@ public class ReadCardActivity extends AppCompatActivity {
                 mBluetoothController.connectDevice(mac);
             } else {
                 Log.e(TAG, "初始化 mBluetoothController 失败");
-                finish();
+                mBluetoothController.stopTrade();
             }
         }
 
@@ -199,7 +207,10 @@ public class ReadCardActivity extends AppCompatActivity {
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
             return insets;
         });
-        findViewById(R.id.test).setOnClickListener(v -> finish());
+        findViewById(R.id.test).setOnClickListener(v -> {
+ 
+            mBluetoothController.stopTrade();
+        });
 
         final BluetoothManager bluetoothManager =
                 (BluetoothManager) getSystemService(BLUETOOTH_SERVICE);
@@ -586,6 +597,7 @@ public class ReadCardActivity extends AppCompatActivity {
         @Override
         public void onStopTradeSuccess() {
             Log.e(TAG, "onStopTradeSuccess");
+            finish();
         }
 
         @Override
@@ -622,6 +634,7 @@ public class ReadCardActivity extends AppCompatActivity {
         super.onDestroy();
         try {
             handler.removeCallbacks(readRunnable);
+            
             unbindService(mServiceConnection);
             if (mBluetoothLeService != null) {
                 mBluetoothLeService.disconnect();