diff --git a/.agents/rules/versioning.md b/.agents/rules/versioning.md
index 2fdf7ab..dbf6b57 100644
--- a/.agents/rules/versioning.md
+++ b/.agents/rules/versioning.md
@@ -68,8 +68,17 @@ S    _ 12    _ XY    _ U        _ Chengwai _ 10       _ 08     _ 8        _ R
     *   **`Cmuh`** (中國醫客製)：支援 QR Code 掃碼、處方籤醫令離線 AES 解密與解析領藥流程。
 2.  **`hardware` 維度 (硬體與系統規格區隔)**：
     *   **`S12XYU`**：代表 `S` (來源) + `12` (安卓號) + `XY` (主板號) + `U` (機器系列/機型規格)。
+    *   **`S9XYU`**：代表中國醫現場使用的 Android 9 / 21.5 吋硬體規格；除非明確指定中國醫 10 吋或 `S12XYU`，中國醫 (`Cmuh`) 相關修正與驗證預設必須使用此硬體 flavor。
 
-### 4.2 實體機台 APK 命名鐵律
+### 4.2 Flavor 驗證與編譯指令選擇
+
+針對特定客戶或現場問題修改後，必須編譯對應的 Gradle variant，不可只用通用 `assembleDebug` 或錯誤硬體 flavor 代替。
+
+*   **中國醫現場版 (`Cmuh`) 驗證指令**：`./gradlew :app:assembleCmuhS9XYUDebug --no-daemon`
+*   **晟崴版 (`Chengwai`) 預設驗證指令**：`./gradlew :app:assembleChengwaiS12XYUDebug --no-daemon`
+*   **通用版 (`General`) 預設驗證指令**：`./gradlew :app:assembleGeneralS12XYUDebug --no-daemon`
+
+### 4.3 實體機台 APK 命名鐵律
 為了符合實體機台 OTA 平台發佈規範，打包輸出的 APK 檔名必須嚴格連動雙維度，並遵循以下格式：
 `app-[格式化硬體規格]_[專案名稱]-[版本號]-[BuildType].apk`
 
diff --git a/AGENTS.md b/AGENTS.md
index 45d7b68..bacc403 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -24,6 +24,7 @@
 - 禁止直接手改成品 `versionCode`/`versionName` 值。
 - 版號管理透過 `verMajor`、`verMinor`、`verPatch` 變數。
 - OTA 發版時，`versionCode` 必須嚴格遞增。
+- 中國醫現場版 (`Cmuh`) 修正預設以 `:app:assembleCmuhS9XYUDebug` 驗證。
 
 ## When Rules Conflict
 
diff --git a/app/build.gradle b/app/build.gradle
index 6507b9b..97dadd0 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -9,7 +9,8 @@ plugins {
 // 避免不同尺寸機台間版本號產生衝突。
 // =========================================================================
 def verMinor = 1
-def verPatch = 65
+def verPatch = 67
+
 
 
 android {
diff --git a/app/src/Cmuh/java/com/unibuy/smartdevice/ui/SaleFlowHandler.java b/app/src/Cmuh/java/com/unibuy/smartdevice/ui/SaleFlowHandler.java
index 218ce96..2c94e2e 100644
--- a/app/src/Cmuh/java/com/unibuy/smartdevice/ui/SaleFlowHandler.java
+++ b/app/src/Cmuh/java/com/unibuy/smartdevice/ui/SaleFlowHandler.java
@@ -322,14 +322,36 @@ public class SaleFlowHandler {
                     haveValuestate = true;
                     
                     if (requestQty > 1) {
-                        int checkcount = 0;
-                        int slotnum = 0;
+                        class TempSlot {
+                            int slotNo;
+                            int stock;
+                            TempSlot(int slotNo, int stock) {
+                                this.slotNo = slotNo;
+                                this.stock = stock;
+                            }
+                        }
+                        String[] slotPairs = medicineList.get(i).getMedicineSlot().split(",");
+                        java.util.List<TempSlot> tempSlots = new java.util.ArrayList<>();
+                        for (String pair : slotPairs) {
+                            if (pair.trim().isEmpty()) continue;
+                            String[] parts = pair.split("-");
+                            if (parts.length == 2) {
+                                tempSlots.add(new TempSlot(Integer.parseInt(parts[0]), Integer.parseInt(parts[1])));
+                            }
+                        }
+
+                        int slotIdx = 0;
                         for (int j = 0; j < requestQty; j++) {
-                            checkcount += 1;
-                            if (checkcount > Integer.valueOf(medicineList.get(i).getMedicineSlot().split(",")[0].split("-")[1])) {
-                                slotnum = Integer.valueOf(medicineList.get(i).getMedicineSlot().split(",")[1].split("-")[0]);
+                            while (slotIdx < tempSlots.size() && tempSlots.get(slotIdx).stock <= 0) {
+                                slotIdx++;
+                            }
+                            int slotnum;
+                            if (slotIdx < tempSlots.size()) {
+                                TempSlot activeSlot = tempSlots.get(slotIdx);
+                                slotnum = activeSlot.slotNo;
+                                activeSlot.stock--;
                             } else {
-                                slotnum = Integer.valueOf(medicineList.get(i).getMedicineSlot().split(",")[0].split("-")[0]);
+                                slotnum = tempSlots.get(tempSlots.size() - 1).slotNo;
                             }
                             addMedicineToBuyList(
                                 medicineList.get(i).getProductId(),
diff --git a/app/src/main/java/com/unibuy/smartdevice/service/MqttService.java b/app/src/main/java/com/unibuy/smartdevice/service/MqttService.java
index 9d6409a..19fa136 100644
--- a/app/src/main/java/com/unibuy/smartdevice/service/MqttService.java
+++ b/app/src/main/java/com/unibuy/smartdevice/service/MqttService.java
@@ -138,7 +138,7 @@ public class MqttService extends Service {
                         new android.os.Handler(android.os.Looper.getMainLooper()).post(() -> {
                             Intent lockIntent = new Intent(getApplicationContext(),
                                     com.unibuy.smartdevice.ui.MaintenanceActivity.class);
-                            lockIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
+                            lockIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                             startActivity(lockIntent);
                         });
                     } else if ("unlock".equals(cmd)) {
diff --git a/app/src/main/java/com/unibuy/smartdevice/tools/AppUtils.java b/app/src/main/java/com/unibuy/smartdevice/tools/AppUtils.java
index 52d8ee6..8a91dca 100644
--- a/app/src/main/java/com/unibuy/smartdevice/tools/AppUtils.java
+++ b/app/src/main/java/com/unibuy/smartdevice/tools/AppUtils.java
@@ -1,26 +1,23 @@
-package com.unibuy.smartdevice.tools;
-
-import android.app.AlarmManager;
-import android.app.PendingIntent;
-import android.content.Context;
-import android.content.Intent;
-
-import com.unibuy.smartdevice.external.mqtt.MqttManager;
-import com.unibuy.smartdevice.ui.FontendActivity;
-
-public class AppUtils {
-    public static void resetApp(Context context) {
-        Intent intent = new Intent(context, FontendActivity.class);
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
-
-        PendingIntent pendingIntent = PendingIntent.getActivity(
-                context, 0, intent, PendingIntent.FLAG_IMMUTABLE);
-
-        AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
-        alarmManager.setExact(AlarmManager.RTC, System.currentTimeMillis() + 500, pendingIntent);
-
-
-
-        android.os.Process.killProcess(android.os.Process.myPid());
-    }
-}
+package com.unibuy.smartdevice.tools;
+
+import android.app.AlarmManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+
+import com.unibuy.smartdevice.ui.FontendActivity;
+
+public class AppUtils {
+    public static void resetApp(Context context) {
+        Intent intent = new Intent(context, FontendActivity.class);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
+
+        PendingIntent pendingIntent = PendingIntent.getActivity(
+                context, 0, intent, PendingIntent.FLAG_IMMUTABLE);
+
+        AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
+        alarmManager.setExact(AlarmManager.RTC, System.currentTimeMillis() + 500, pendingIntent);
+
+        android.os.Process.killProcess(android.os.Process.myPid());
+    }
+}
diff --git a/app/src/main/java/com/unibuy/smartdevice/ui/FontendActivity.java b/app/src/main/java/com/unibuy/smartdevice/ui/FontendActivity.java
index 0d16ca5..94a58bd 100644
--- a/app/src/main/java/com/unibuy/smartdevice/ui/FontendActivity.java
+++ b/app/src/main/java/com/unibuy/smartdevice/ui/FontendActivity.java
@@ -45,6 +45,7 @@ import androidx.fragment.app.FragmentManager;
 import com.unibuy.smartdevice.R;
 import com.unibuy.smartdevice.controller.DevController;
 import com.unibuy.smartdevice.controller.DevXinYuanController;
+import com.unibuy.smartdevice.database.SettingsDao;
 import com.unibuy.smartdevice.database.SlotsDao;
 import com.unibuy.smartdevice.databinding.ActivityFontendBinding;
 import com.unibuy.smartdevice.devices.DevNFCPay;
@@ -407,6 +408,18 @@ public class FontendActivity extends AppCompatActivityAbstract implements SaleFl
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
+        SettingsDao settingsDao = new SettingsDao(getApplicationContext());
+        if (settingsDao.isMachineLocked()) {
+            settingsDao.close();
+            Intent intent = new Intent(this, MaintenanceActivity.class);
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
+            startActivity(intent);
+            finish();
+            return;
+        }
+        settingsDao.close();
+
         // 讀取最後設定語言的設定
         // LanguageHelper.applySavedLanguage(this);
         binding = ActivityFontendBinding.inflate(getLayoutInflater());