diff --git a/Windows/CS/Framework4.0/Updater/src/main.rs b/Windows/CS/Framework4.0/Updater/src/main.rs
index 9d3d945..edb6f21 100644
--- a/Windows/CS/Framework4.0/Updater/src/main.rs
+++ b/Windows/CS/Framework4.0/Updater/src/main.rs
@@ -191,6 +191,14 @@ async fn run_updater(debug_mode: bool) {
     client.on_first_connect(move |_url, sender| {
         let device_number = device_number.clone();
         Box::pin(async move {
+            // 仅当有有效的 DeviceNumber 时才发送 GetFileVer 命令
+            if device_number.is_empty() || device_number == "UNKNOWN" {
+                if debug_for_first {
+                    println!("[首次连接] 未配置设备号，仅维持心跳连接");
+                }
+                return;
+            }
+            
             if debug_for_first {
                 println!("[首次连接] 发送 GetFileVer 命令...");
             }
@@ -236,6 +244,14 @@ async fn run_updater(debug_mode: bool) {
     client.on_reconnected(move |_url, sender| {
         let device_number = device_number.clone();
         Box::pin(async move {
+            // 仅当有有效的 DeviceNumber 时才发送 GetFileVer 命令
+            if device_number.is_empty() || device_number == "UNKNOWN" {
+                if debug_for_reconnected {
+                    println!("[重连成功] 未配置设备号，仅维持心跳连接");
+                }
+                return;
+            }
+            
             if debug_for_reconnected {
                 println!("[重连成功] 发送 GetFileVer 命令...");
             }