diff --git a/appsrc/service/setting/device_ext_setting_mgr_service.cpp b/appsrc/service/setting/device_ext_setting_mgr_service.cpp
index 0a796e1..90260f4 100644
--- a/appsrc/service/setting/device_ext_setting_mgr_service.cpp
+++ b/appsrc/service/setting/device_ext_setting_mgr_service.cpp
@@ -84,6 +84,10 @@ void DeviceExtSettingMgrService::initialize() {
   REG_EXTFN_VOID(factoryResetDevice, void(void));  //
   REG_EXTFN_VOID_DISPNAME(factoryResetDevice, "恢复出长设置(程序会重启)");
 
+  if (!PORT.isDeviceTypeInited()) {
+    return;
+  }
+
   REG_LINE("Setting限制");
   REG_EXTFN(setMaxInjectVelGPMLimit, void(int), val);
   REG_EXTFN_DISPNAME(setMaxInjectVelGPMLimit, "最大注射速度限制(GPM)", "val");