diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 22b221ac..40112dff 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -81,6 +81,9 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.MicroPhoto"
         tools:targetApi="28">
+        <activity
+            android:name=".CertActivity"
+            android:exported="true" />
         <activity
             android:name=".video.VideoActivity"
             android:exported="false"
@@ -135,7 +138,6 @@
                 <action android:name="android.intent.action.USER_UNLOCKED" />
             </intent-filter>
         </receiver>
-
         <receiver
             android:name="com.xypower.common.UpdateReceiver"
             android:enabled="true"
diff --git a/app/src/main/cpp/MicroPhoto.cpp b/app/src/main/cpp/MicroPhoto.cpp
index 7086e3ed..42db41d2 100644
--- a/app/src/main/cpp/MicroPhoto.cpp
+++ b/app/src/main/cpp/MicroPhoto.cpp
@@ -696,27 +696,100 @@ Java_com_xypower_mpapp_MicroPhotoService_getSerialNumber(
 }
 
 
-extern "C" JNIEXPORT void JNICALL
-Java_com_xypower_mpapp_MicroPhotoService_importPublicKey(
-        JNIEnv* env,
-        jclass cls, jstring path, jstring md5) {
+extern "C" JNIEXPORT jboolean JNICALL
+Java_com_xypower_mpapp_MicroPhotoService_importPublicKeyFile(
+        JNIEnv* env, jclass cls, jint index, jstring path, jstring md5) {
 
 #ifdef USING_NRSEC
 
     NrsecPort nrsec;
-    nrsec.Open("/dev/");
+
+    // NrsecSpiPort spi("/dev/mtkgpioctrl");
+    // NrsecSpiPort spi("/dev/spidevSE");
+    // const char *port = "/dev/mtkgpioctrl";
+    const char *port = "/dev/spidevSE";
+
+    if (!nrsec.Open(port))
+    {
+        return JNI_FALSE;
+    }
 
     const char *pathStr = env->GetStringUTFChars(path, 0);
     const char *md5Str = env->GetStringUTFChars(md5, 0);
 
+    bool res = false;
     std::vector<unsigned char> data;
     if (readFile(pathStr, data) && !data.empty())
     {
-        nrsec.SM2InportPublicKey(1, &data[0]);
+        res = nrsec.SM2ImportPublicKey(1, &data[0]);
     }
 
+    nrsec.Close();
+
     env->ReleaseStringUTFChars(path, pathStr);
     env->ReleaseStringUTFChars(md5, md5Str);
+
+    return res ? JNI_TRUE : JNI_FALSE;
+#endif
+}
+
+extern "C" JNIEXPORT jboolean JNICALL
+Java_com_xypower_mpapp_MicroPhotoService_importPublicKey(
+        JNIEnv* env, jclass cls, jint index, jbyteArray cert) {
+
+#ifdef USING_NRSEC
+
+    NrsecPort nrsec;
+    // const char *port = "/dev/mtkgpioctrl";
+    const char *port = "/dev/spidevSE";
+    int byteCertLen = env->GetArrayLength(cert);
+    if (byteCertLen <= 0)
+    {
+        return JNI_FALSE;
+    }
+
+    if (!nrsec.Open(port))
+    {
+        return JNI_FALSE;
+    }
+
+    jbyte* byteCert = env->GetByteArrayElements(cert, 0);
+
+    bool res = nrsec.SM2ImportPublicKey(index, (const uint8_t*)byteCert);
+
+    nrsec.Close();
+
+    env->ReleaseByteArrayElements(cert, byteCert, JNI_ABORT);
+
+    return res ? JNI_TRUE : JNI_FALSE;
+#endif
+}
+
+extern "C" JNIEXPORT jboolean JNICALL
+Java_com_xypower_mpapp_MicroPhotoService_genKeys(
+        JNIEnv* env,
+        jclass cls, jint index) {
+
+#ifdef USING_NRSEC
+
+    GpioControl::setRS485Enable(true);
+
+    // const char *port = "/dev/mtkgpioctrl";
+    const char *port = "/dev/spidevSE";
+
+    NrsecPort nrsec;
+    if (!nrsec.Open(port))
+    {
+        return JNI_FALSE;
+    }
+
+    // std::string version = nrsec.Version();
+
+    bool res = nrsec.SM2keypair(index) == 0;
+
+    nrsec.Close();
+
+    return res ? JNI_TRUE : JNI_FALSE;
 #endif
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/xypower/mpapp/CertActivity.java b/app/src/main/java/com/xypower/mpapp/CertActivity.java
new file mode 100644
index 00000000..4fb29c26
--- /dev/null
+++ b/app/src/main/java/com/xypower/mpapp/CertActivity.java
@@ -0,0 +1,65 @@
+package com.xypower.mpapp;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.text.TextUtils;
+import android.util.Base64;
+
+import java.io.File;
+import java.nio.charset.StandardCharsets;
+
+public class CertActivity extends AppCompatActivity {
+
+    private final static String ACTION_IMP_PUBKEY = "imp_pubkey";
+    private final static String ACTION_GEN_KEYS = "gen_keys";
+
+    private Handler mHandler = null;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_cert);
+
+        mHandler = new Handler();
+
+        Intent intent = getIntent();
+        final String action = intent.getStringExtra("action");
+        if (!TextUtils.isEmpty(action)) {
+            if (TextUtils.equals(action, ACTION_IMP_PUBKEY)) {
+                String cert = intent.getStringExtra("cert");
+                String path = intent.getStringExtra("path");
+                int index = intent.getIntExtra("index", 1);
+
+                if (!TextUtils.isEmpty(cert)) {
+                    // Import
+                    // String cert = intent.getStringExtra("md5");
+                    byte[] content = Base64.decode(cert, Base64.DEFAULT);
+                    if (content != null) {
+                        MicroPhotoService.importPublicKey(index, content);
+                    }
+                } else if (TextUtils.isEmpty(path)) {
+                    String md5 = intent.getStringExtra("md5");
+                    File file = new File(path);
+                    if (file.exists() && file.isFile()) {
+                        MicroPhotoService.importPublicKeyFile(index, path, md5);
+                    }
+                }
+            } else if (TextUtils.equals(action, ACTION_GEN_KEYS)) {
+                int index = intent.getIntExtra("index", 0);
+                MicroPhotoService.genKeys(index);
+            }
+        }
+
+        final Activity activity = this;
+        mHandler.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                activity.finish();
+            }
+        }, 2000);
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
index 87bcf303..efe9ea2d 100644
--- a/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
+++ b/app/src/main/java/com/xypower/mpapp/MicroPhotoService.java
@@ -146,6 +146,14 @@ public class MicroPhotoService extends Service {
 
     public static boolean isRunning = false;
 
+    private Runnable delayedSleep = new Runnable() {
+        @Override
+        public void run() {
+            Log.i(TAG, "Device Sleep");
+            // SysApi.sleep(getApplicationContext());
+        }
+    };
+
     public MicroPhotoService() {
     }
     @Override
@@ -725,6 +733,12 @@ public class MicroPhotoService extends Service {
         synchronized (mWakeLocks) {
             wl2 = mWakeLocks.get(name);
             mWakeLocks.put(name, wl);
+
+        }
+        try {
+            mHander.removeCallbacks(delayedSleep);
+        } catch (Exception ex) {
+            // ex.printStackTrace();
         }
         if (wl2 != null) {
             Log.i(TAG, "Release same name wakelock:" + name);
@@ -742,6 +756,10 @@ public class MicroPhotoService extends Service {
             try {
                 wl = mWakeLocks.get(name);
                 mWakeLocks.remove(name);
+
+                if (mWakeLocks.isEmpty()) {
+                    mHander.postDelayed(delayedSleep, 2000);
+                }
             } catch (Exception ex) {
                 ex.printStackTrace();
             }
@@ -866,7 +884,7 @@ public class MicroPhotoService extends Service {
                 // Set Listener
             }
             try {
-                mLocationManager.requestLocationUpdates(mLocateType, 100, 1, mLocationListener);
+                mLocationManager.requestLocationUpdates(mLocateType, 30000, 1, mLocationListener);
             } catch (Exception ex) {
                 ex.printStackTrace();
             }
@@ -1074,7 +1092,9 @@ cellSignalStrengthGsm.getDbm();
     public static native void setOtgState(boolean enabled);
     public static native void setCam3V3Enable(boolean enabled);
     public static native String getSerialNumber();
-    public static native void importPublicKey(String path, String md5);
+    public static native boolean importPublicKeyFile(int index, String path, String md5);
+    public static native boolean importPublicKey(int index, byte cert[]);
+    public static native boolean genKeys(int index);
 
     ////////////////////////GPS////////////////////
     // private static final String GPS_LOCATION_NAME = android.location.LocationManager.GPS_PROVIDER;
diff --git a/app/src/main/res/layout/activity_cert.xml b/app/src/main/res/layout/activity_cert.xml
new file mode 100644
index 00000000..52f1a7d9
--- /dev/null
+++ b/app/src/main/res/layout/activity_cert.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".CertActivity">
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file