diff --git a/app/src/main/java/com/xypower/secapp/BridgeProvider.java b/app/src/main/java/com/xypower/secapp/BridgeProvider.java
index a4779bc..b725a3a 100644
--- a/app/src/main/java/com/xypower/secapp/BridgeProvider.java
+++ b/app/src/main/java/com/xypower/secapp/BridgeProvider.java
@@ -12,6 +12,7 @@ import android.text.TextUtils;
 import android.util.Base64;
 import android.util.Log;
 
+import com.dowse.devicesdk.DsDeviceSdk;
 import com.xypower.common.FilesUtils;
 
 import org.json.JSONObject;
@@ -56,9 +57,47 @@ public class BridgeProvider extends ContentProvider {
     @Override
     public boolean onCreate() {
         // TODO: Implement this to initialize your content provider on startup.
+
         return true;
     }
 
+    private void initNrsec() {
+        boolean bres = false;
+        int res = 0;
+        DsDeviceSdk dsSdk = DsDeviceSdk.getInstance();
+        dsSdk.init();
+
+        res = dsSdk.mcuInit();
+        res = dsSdk.mcuOpen();
+
+        bres = dsSdk.mcuPowerOffCPR();
+        try {
+            Thread.sleep(100);
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+        bres = dsSdk.mcuPowerOnCPR();
+
+        try {
+            Thread.sleep(50);
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+    }
+
+    private void uninitNrsec() {
+        DsDeviceSdk dsSdk = DsDeviceSdk.getInstance();
+
+        int res = 0;
+
+        boolean bres = dsSdk.mcuPowerOffCPR();
+        res = dsSdk.mcuClose();
+        res = dsSdk.mcuUnInit();
+
+        dsSdk.release();
+
+    }
+
     @Override
     public Cursor query(Uri uri, String[] projection, String selection,
                         String[] selectionArgs, String sortOrder) {
@@ -67,6 +106,8 @@ public class BridgeProvider extends ContentProvider {
         Log.i(TAG, uri.toString());
         matcher.addURI(AUTHORITY, PATH_QUERY_SEC_VERSION, 1);
 
+        initNrsec();
+
         Cursor cursor = null;
         int matched = matcher.match(uri);
         switch (matched) {
@@ -77,6 +118,7 @@ public class BridgeProvider extends ContentProvider {
                 break;
         }
 
+        uninitNrsec();
         return cursor;
     }
 
@@ -90,6 +132,7 @@ public class BridgeProvider extends ContentProvider {
         matcher.addURI(AUTHORITY, PATH_GEN_KEYS, 3);
         matcher.addURI(AUTHORITY, PATH_GEN_CERT_REQ, 4);
 
+        initNrsec();
         int res = 0;
         int matched = matcher.match(uri);
         switch (matched) {
@@ -109,6 +152,8 @@ public class BridgeProvider extends ContentProvider {
                 break;
         }
 
+        uninitNrsec();
+
         return res;
     }