diff --git a/app/src/main/java/com/xypower/mpapp/CertActivity.java b/app/src/main/java/com/xypower/mpapp/CertActivity.java
index 4fb29c26..c6acdcc3 100644
--- a/app/src/main/java/com/xypower/mpapp/CertActivity.java
+++ b/app/src/main/java/com/xypower/mpapp/CertActivity.java
@@ -16,6 +16,7 @@ public class CertActivity extends AppCompatActivity {
 
     private final static String ACTION_IMP_PUBKEY = "imp_pubkey";
     private final static String ACTION_GEN_KEYS = "gen_keys";
+    private final static String ACTION_CERT_REQ = "cert_req";
 
     private Handler mHandler = null;
 
@@ -51,6 +52,9 @@ public class CertActivity extends AppCompatActivity {
             } else if (TextUtils.equals(action, ACTION_GEN_KEYS)) {
                 int index = intent.getIntExtra("index", 0);
                 MicroPhotoService.genKeys(index);
+            } else if (TextUtils.equals(action, ACTION_CERT_REQ)) {
+                // int index = intent.getIntExtra("index", 0);
+                // MicroPhotoService.genKeys(index);
             }
         }