diff --git a/Assets/Scripts/Bluetooth/BLECommunicationManager.cs b/Assets/Scripts/Bluetooth/BLECommunicationManager.cs
index 6d78dc1..d87ae9a 100644
--- a/Assets/Scripts/Bluetooth/BLECommunicationManager.cs
+++ b/Assets/Scripts/Bluetooth/BLECommunicationManager.cs
@@ -2505,6 +2505,7 @@ namespace Kill.Bluetooth
             if (BluetoothManager.Instance == null)
             {
                 LogError("BluetoothManager.Instance 为 null");
+                LoadingUI.Hide();
                 return false;
             }
 
@@ -2513,6 +2514,7 @@ namespace Kill.Bluetooth
             {
                 Log("蓝牙未初始化，尝试自动初始化...");
                 BluetoothManager.Instance.Initialize();
+                LoadingUI.Hide();
                 return false;
             }
 
@@ -2521,6 +2523,7 @@ namespace Kill.Bluetooth
             {
                 LogError("蓝牙未连接");
                 ToastUI.Show("100081"); // "请先连接蓝牙设备"
+                LoadingUI.Hide(); // 未连接时立即隐藏Loading，避免一直转圈
                 return false;
             }
 
diff --git a/Assets/Scripts/UI/Pages/DeviceInfoPage/FirmwareUpdatePage.cs b/Assets/Scripts/UI/Pages/DeviceInfoPage/FirmwareUpdatePage.cs
index acf1317..fe9711d 100644
--- a/Assets/Scripts/UI/Pages/DeviceInfoPage/FirmwareUpdatePage.cs
+++ b/Assets/Scripts/UI/Pages/DeviceInfoPage/FirmwareUpdatePage.cs
@@ -172,11 +172,17 @@ namespace Kill.UI.Pages
             UpdateLoadingUI.Instance.Show();
             uint firmwareVersion = ParseFirmwareVersion(otaData.version);
             OTAManager.Instance.OnTransferProgress += OnOTATransferProgress;
+            // OTA 传输期间清空返回事件，防止用户触发返回中断升级；传输结束恢复
+            var otaBackAction = UIManager.Instance.GetBackAction();
+            UIManager.Instance.ClearBackAction();
             StartCoroutine(OTAManager.Instance.PerformFullUpgrade(_selectedFirmwareData, firmwareVersion, (success) =>
             {
                 Loom.QueueOnMainThread(() =>
                 {
                     isUpdating = false;
+                    // 恢复返回事件
+                    if (otaBackAction != null)
+                        UIManager.Instance.RegisterBackAction(otaBackAction);
                     if (success)
                     {
                         ToastUI.Show("100226");
diff --git a/Assets/Scripts/UI/Pages/HomePage/HomePageCtrl.cs b/Assets/Scripts/UI/Pages/HomePage/HomePageCtrl.cs
index e9bbe89..46c632b 100644
--- a/Assets/Scripts/UI/Pages/HomePage/HomePageCtrl.cs
+++ b/Assets/Scripts/UI/Pages/HomePage/HomePageCtrl.cs
@@ -330,12 +330,16 @@ namespace Kill.UI.Pages
             isQueryingStatus = false;
             statusQueryQueue?.Clear();
             UIManager.Instance?.ClearBackAction();
-            // OpenPage 已移至 BluetoothManager.OnSelfDisconnected（全局监听 + 延迟）
+            // 刷新首页设备连接状态UI（延迟到主循环执行，与连接成功时保持一致）
+            pendingUIUpdates.Add(() =>
+            {
+                deviceState?.UpdateDeviceState(hasBluetooth, hasWifi);
+            });
             if(bluetoothDeviceInfoCoroutine!=null)
             {
                 StopCoroutine(bluetoothDeviceInfoCoroutine);
             }
-
+            UIManager.Instance?.OpenMainPage(UIManager.PageName.homePage);
         }
 
         private void OnBluetoothError(string error)