diff --git a/frontend/genex-mobile/lib/core/updater/update_service.dart b/frontend/genex-mobile/lib/core/updater/update_service.dart
index 6439f73..878f55c 100644
--- a/frontend/genex-mobile/lib/core/updater/update_service.dart
+++ b/frontend/genex-mobile/lib/core/updater/update_service.dart
@@ -41,6 +41,7 @@ class UpdateService {
   Future<void> checkForUpdate(BuildContext context) async {
     if (!_isInitialized || !_config.enabled) return;
 
+    debugPrint('[UpdateService] 开始检查更新 channel=${_config.channel} url=${_config.apiBaseUrl}');
     _isShowingUpdateDialog = true;
     try {
       switch (_config.channel) {
@@ -53,6 +54,7 @@ class UpdateService {
       }
     } finally {
       _isShowingUpdateDialog = false;
+      debugPrint('[UpdateService] 更新检查完成');
     }
   }
 
diff --git a/frontend/genex-mobile/lib/core/updater/version_checker.dart b/frontend/genex-mobile/lib/core/updater/version_checker.dart
index d6998c0..c5d46a1 100644
--- a/frontend/genex-mobile/lib/core/updater/version_checker.dart
+++ b/frontend/genex-mobile/lib/core/updater/version_checker.dart
@@ -67,12 +67,18 @@ class VersionChecker {
   Future<VersionInfo?> checkForUpdate() async {
     try {
       final currentInfo = await getCurrentVersion();
+      debugPrint('[VersionChecker] 当前 buildNumber=${currentInfo.buildNumber} 开始检查...');
       final latestInfo = await fetchLatestVersion();
 
-      if (latestInfo == null) return null;
+      if (latestInfo == null) {
+        debugPrint('[VersionChecker] 服务端返回无需更新');
+        return null;
+      }
 
       final currentCode = int.tryParse(currentInfo.buildNumber) ?? 0;
+      debugPrint('[VersionChecker] 服务端最新 versionCode=${latestInfo.versionCode} 本地=$currentCode');
       if (latestInfo.versionCode > currentCode) {
+        debugPrint('[VersionChecker] 发现新版本 ${latestInfo.version}，准备弹窗');
         return latestInfo;
       }
 
diff --git a/frontend/genex-mobile/lib/main.dart b/frontend/genex-mobile/lib/main.dart
index 8df8dbd..5df7989 100644
--- a/frontend/genex-mobile/lib/main.dart
+++ b/frontend/genex-mobile/lib/main.dart
@@ -40,9 +40,9 @@ import 'features/coupons/presentation/pages/wallet_coupons_page.dart';
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
-  // 初始化升级服务（走 Nginx 反向代理 → Kong 网关，国内用 .cn 域名）
+  // 初始化升级服务（走 Nginx 反向代理 → Kong 网关）
   UpdateService().initialize(UpdateConfig.selfHosted(
-    apiBaseUrl: 'https://api.gogenex.cn',
+    apiBaseUrl: 'https://api.gogenex.com',
     enabled: true,
   ));