diff --git a/app/src/main/java/com/unibuy/smartdevice/ui/devs/vmc/RecyclerVmcBuyListAdpter.java b/app/src/main/java/com/unibuy/smartdevice/ui/devs/vmc/RecyclerVmcBuyListAdpter.java
index c3d79ed..248d8ec 100644
--- a/app/src/main/java/com/unibuy/smartdevice/ui/devs/vmc/RecyclerVmcBuyListAdpter.java
+++ b/app/src/main/java/com/unibuy/smartdevice/ui/devs/vmc/RecyclerVmcBuyListAdpter.java
@@ -4,9 +4,11 @@ import android.app.AlertDialog;
 import android.content.Context;
 import android.os.Handler;
 import android.os.Looper;
+import android.util.TypedValue;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView;
@@ -38,6 +40,7 @@ public class RecyclerVmcBuyListAdpter extends RecyclerView.Adapter<RecyclerVmcBu
     private final List<SlotStructure> SlotList;
     private FragmentAbstract fragment;
     private boolean haveThings, doorError;
+    private volatile boolean isCheckingSlot = false; // 點擊鎖：防止非同步檢查期間重複點擊
 
     public RecyclerVmcBuyListAdpter(FragmentAbstract fragment, List<SlotStructure> slotList) {
         this.logs = new Logs(this.getClass());
@@ -155,6 +158,9 @@ public class RecyclerVmcBuyListAdpter extends RecyclerView.Adapter<RecyclerVmcBu
                 return;
             if (MyApp.getInstance().isShowDialog())
                 return;
+            // 防呆：正在檢查出貨口狀態時，不允許再次點擊
+            if (isCheckingSlot)
+                return;
 
             // ✅ 即時庫存檢查（防止 MQTT 更新後 UI 尚未刷新的時間差）
             try {
@@ -171,19 +177,37 @@ public class RecyclerVmcBuyListAdpter extends RecyclerView.Adapter<RecyclerVmcBu
                 // 查詢失敗時不阻擋，讓原流程繼續
             }
 
-            BuyStructure buyProduct = new BuyStructure(slotProduct.getField(), slotProduct.getSlot(),
-                    slotProduct.getProduct(), 1);
-            MyApp.getInstance().getBuyList().add(buyProduct);
-            fragment.getSrcHandlerMain().start(getClass().getSimpleName(),
-                    FontendActivity.Option.STOP_COUNTDOWN.getOption(), "stop countdown");
-            new MemberCardPickupDialog(context, fragment.getSrcHandlerMain()).show();
+            // 點選時即時檢查出貨口狀態（上鎖防止重複點擊）
+            isCheckingSlot = true;
+            checkSlotHaveProduct(slotProduct.getSlot(), 1, () -> {
+                isCheckingSlot = false;
+                BuyStructure buyProduct = new BuyStructure(slotProduct.getField(), slotProduct.getSlot(),
+                        slotProduct.getProduct(), 1);
+                MyApp.getInstance().getBuyList().add(buyProduct);
+                fragment.getSrcHandlerMain().start(getClass().getSimpleName(),
+                        FontendActivity.Option.STOP_COUNTDOWN.getOption(), "stop countdown");
+                new MemberCardPickupDialog(context, fragment.getSrcHandlerMain()).show();
+            });
         }
     }
 
-    public void checkSlotHaveProduct(int slotnum, int slotcount) {
+    public void checkSlotHaveProduct(int slotnum, int slotcount, Runnable onSafe) {
+        haveThings = false;
+        doorError = false;
+
+        java.util.concurrent.atomic.AtomicBoolean isHandled = new java.util.concurrent.atomic.AtomicBoolean(false);
+
+        // 設定 3000ms 超時機制：如果機器沒反應，視為正常並繼續，避免程式卡住
+        if (onSafe != null) {
+            new Handler(Looper.getMainLooper()).postDelayed(() -> {
+                if (!isHandled.getAndSet(true)) {
+                    logs.info("VMC Check Slot Timeout - Approving Safe (Timeout Safeguard)");
+                    onSafe.run();
+                }
+            }, 3000);
+        }
+
         logs.info("RecyclerDialogBuyListAdpter 111111111111111" + slotnum);
-        // MyApp.getInstance().getDevXinYuanController().getReadBufferByNow(new
-        // DevCheckSlotByVMC(handlerMain));
         logs.info("RecyclerDialogBuyListAdpter 222222222222222" + slotcount);
         MyApp.getInstance().getDevXinYuanController().addSendBuffer(
                 MyApp.getInstance().getDevXinYuanController().getDevXinYuan().checkSlotPre(slotnum, slotcount));
@@ -191,13 +215,19 @@ public class RecyclerVmcBuyListAdpter extends RecyclerView.Adapter<RecyclerVmcBu
         MyApp.getInstance().getDevXinYuanController()
                 .addSendBuffer(MyApp.getInstance().getDevXinYuanController().getDevXinYuan().checkSlot(slotnum));
         logs.info("RecyclerDialogBuyListAdpter 444444444444444");
+        // 使用較短的延遲（800ms）來加速讀取回覆，預設 2000ms 對 checkSlot 查詢來說太慢
         MyApp.getInstance().getDevXinYuanController()
-                .getReadBufferByNow(new DevCheckSlotByVMC(fragment.getSrcHandlerMain()));
+                .getReadBufferByNow(new DevCheckSlotByVMC(fragment.getSrcHandlerMain(), onSafe, isHandled), 800);
     }
 
     public class DevCheckSlotByVMC extends DevController.ReadBufferOnScheduler {
-        public DevCheckSlotByVMC(HandlerMain handlerMain) {
+        private Runnable onSafe;
+        private java.util.concurrent.atomic.AtomicBoolean isHandled;
+
+        public DevCheckSlotByVMC(HandlerMain handlerMain, Runnable onSafe, java.util.concurrent.atomic.AtomicBoolean isHandled) {
             super(handlerMain);
+            this.onSafe = onSafe;
+            this.isHandled = isHandled;
         }
 
         @Override
@@ -212,8 +242,9 @@ public class RecyclerVmcBuyListAdpter extends RecyclerView.Adapter<RecyclerVmcBu
 
         @Override
         public void readBufferOnScheduler(DevController devController, HandlerMain handlerMain) {
-            // 每次檢查前先重置門狀態旗標
+            // 每次檢查前先重置狀態旗標，修正 haveThings 狀態殘留 Bug
             doorError = false;
+            haveThings = false;
             for (byte[] buffer : devController.getReadBufferByMax()) {
                 if (buffer[0] == 0x02) {
                     getLogs().info("xxxxxxxxxxxxxxxxxxxxxxxxXinYuan Read:" + PortTools.showHex(buffer));
@@ -231,6 +262,7 @@ public class RecyclerVmcBuyListAdpter extends RecyclerView.Adapter<RecyclerVmcBu
             }
 
             if (haveThings) {
+                if (isHandled.getAndSet(true)) return;
                 // 使用主執行緒顯示 AlertDialog
                 new Handler(Looper.getMainLooper()).post(() -> {
                     AlertDialog dialog = new AlertDialog.Builder(context)
@@ -239,6 +271,7 @@ public class RecyclerVmcBuyListAdpter extends RecyclerView.Adapter<RecyclerVmcBu
                             .setCancelable(false)
                             .setPositiveButton(R.string.i_knew, (d, which) -> {
                                 d.dismiss();
+                                isCheckingSlot = false;
                                 handlerMain.start(getClass().getSimpleName(), BuyDialog.Option.FORCE_CLOSE.getOption(),
                                         "force close");
                             })
@@ -246,16 +279,24 @@ public class RecyclerVmcBuyListAdpter extends RecyclerView.Adapter<RecyclerVmcBu
 
                     dialog.show();
 
+                    // 放大提示文字
+                    TextView messageView = dialog.findViewById(android.R.id.message);
+                    if (messageView != null) {
+                        messageView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 24);
+                    }
+
                     // 加入 10 秒後自動觸發點擊確定
                     new Handler(Looper.getMainLooper()).postDelayed(() -> {
                         if (dialog.isShowing()) {
                             dialog.dismiss();
+                            isCheckingSlot = false;
                             handlerMain.start(getClass().getSimpleName(), BuyDialog.Option.FORCE_CLOSE.getOption(),
                                     "force close");
                         }
                     }, 10_000); // 10 秒（10000 毫秒）
                 });
             } else if (doorError) {
+                if (isHandled.getAndSet(true)) return;
                 // 取貨口門未關閉，提示使用者並阻止後續購買流程
                 doorError = false;
                 handlerMain.start("RecycleFlowerBuyListAdpter", "取貨口門未正常關閉，請先確認門已關好");
@@ -267,6 +308,7 @@ public class RecyclerVmcBuyListAdpter extends RecyclerView.Adapter<RecyclerVmcBu
                             .setCancelable(false)
                             .setPositiveButton(R.string.i_knew, (d, which) -> {
                                 d.dismiss();
+                                isCheckingSlot = false;
                                 handlerMain.start(getClass().getSimpleName(), BuyDialog.Option.FORCE_CLOSE.getOption(),
                                         "force close");
                             })
@@ -274,15 +316,29 @@ public class RecyclerVmcBuyListAdpter extends RecyclerView.Adapter<RecyclerVmcBu
 
                     dialog.show();
 
+                    // 放大提示文字
+                    TextView messageView = dialog.findViewById(android.R.id.message);
+                    if (messageView != null) {
+                        messageView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 24);
+                    }
+
                     // 加入 10 秒後自動觸發點擊確定
                     new Handler(Looper.getMainLooper()).postDelayed(() -> {
                         if (dialog.isShowing()) {
                             dialog.dismiss();
+                            isCheckingSlot = false;
                             handlerMain.start(getClass().getSimpleName(), BuyDialog.Option.FORCE_CLOSE.getOption(),
                                     "force close");
                         }
                     }, 10_000); // 10 秒（10000 毫秒）
                 });
+            } else {
+                // 狀態安全且無異常，執行購買回呼
+                if (!isHandled.getAndSet(true)) {
+                    if (onSafe != null) {
+                        new Handler(Looper.getMainLooper()).post(onSafe);
+                    }
+                }
             }
         }
     }
diff --git a/app/src/main/res/values-en/strings.xml b/app/src/main/res/values-en/strings.xml
index 6c0c0b4..fb68171 100644
--- a/app/src/main/res/values-en/strings.xml
+++ b/app/src/main/res/values-en/strings.xml
@@ -387,7 +387,7 @@
     <string name="abnormal_response_message_error">Abnormal response, message error</string>
     <string name="product_delivery_issues_contact_the_counter_window">For product delivery issues, please contact the counter window!</string>
     <string name="abnormal_reminder">Abnormal reminder</string>
-    <string name="there_is_something_at_the_pickup_port">There is something at the pickup port, please contact the service staff to handle it!</string>
+    <string name="there_is_something_at_the_pickup_port">There is something at the pickup port, please remove it first</string>
     <string name="i_knew">knew</string>
     <string name="input_vehicle">Input Vehicle</string>
     <string name="reload_product">Reload Products</string>
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index 48d67bd..d7ffc21 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -387,7 +387,7 @@
     <string name="abnormal_response_message_error">異常応答、メッセージエラー</string>
     <string name="product_delivery_issues_contact_the_counter_window">商品配送に関するトラブルはカウンター窓口までお問い合わせください！</string>
     <string name="abnormal_reminder">異常なリマインダー</string>
-    <string name="there_is_something_at_the_pickup_port">ピックアップポートに何かある場合は、サービススタッフに連絡して対応してください！</string>
+    <string name="there_is_something_at_the_pickup_port">受取口に物があります、先に取り出してください</string>
     <string name="i_knew">知っていた</string>
     <string name="input_vehicle">スマホバーコード への入力</string>
     <string name="sync_product">商品データを同期</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index e32feab..7a83c6a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -297,7 +297,7 @@
     <string name="abnormal_response_message_error">回應異常，電文錯誤</string>
     <string name="product_delivery_issues_contact_the_counter_window">商品出貨問題，請洽櫃台窗口!</string>
     <string name="abnormal_reminder">異常提醒</string>
-    <string name="there_is_something_at_the_pickup_port">取貨口有東西，請聯繫服務人員處理!</string>
+    <string name="there_is_something_at_the_pickup_port">取貨口有東西，請先取出</string>
     <string name="i_knew">知道了</string>
     <string name="input_vehicle">輸入載具</string>
     <string name="member_card_pickup_title">領取確認</string>