diff --git a/app/src/main/java/com/xypower/mpapp/BridgeActivity.java b/app/src/main/java/com/xypower/mpapp/BridgeActivity.java
index f01eb244..482ac326 100644
--- a/app/src/main/java/com/xypower/mpapp/BridgeActivity.java
+++ b/app/src/main/java/com/xypower/mpapp/BridgeActivity.java
@@ -31,6 +31,7 @@ public class BridgeActivity extends AppCompatActivity {
     private final static String ACTION_BATTERY_VOLTAGE = "query_bv";
     private final static String ACTION_RECORDING = "recording";
     private final static String ACTION_TAKE_PHOTO = "take_photo";
+    private final static String ACTION_QUERY_SEC_VERSION = "query_sec_v";
 
     private final static int REQUEST_CODE_RECORDING = Camera2VideoActivity.REQUEST_CODE_RECORDING;
 
@@ -50,7 +51,15 @@ public class BridgeActivity extends AppCompatActivity {
         Intent intent = getIntent();
         final String action = intent.getStringExtra("action");
         if (!TextUtils.isEmpty(action)) {
-            if (TextUtils.equals(action, ACTION_IMP_PUBKEY)) {
+            if (TextUtils.equals(action, ACTION_QUERY_SEC_VERSION)) {
+                String resultFile = intent.getStringExtra("resultFile");
+                String version = MicroPhotoService.querySecVersion();
+
+                if (!TextUtils.isEmpty(resultFile)) {
+                    FilesUtils.ensureParentDirectoryExisted(resultFile);
+                    FilesUtils.writeTextFile(resultFile, version);
+                }
+            } else if (TextUtils.equals(action, ACTION_IMP_PUBKEY)) {
                 String cert = intent.getStringExtra("cert");
                 String path = intent.getStringExtra("path");
                 String resultFile = intent.getStringExtra("resultFile");