diff --git a/AIParkingApplication/AIParkingApplicationForm.cs b/AIParkingApplication/AIParkingApplicationForm.cs
index aac0eb0..5c29cda 100644
--- a/AIParkingApplication/AIParkingApplicationForm.cs
+++ b/AIParkingApplication/AIParkingApplicationForm.cs
@@ -154,7 +154,7 @@ namespace AIParkingApplication
 
         private void toolStripMenuItemSwitchLaneInIn_Click(object sender, EventArgs e)
         {
-            Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "IN-IN");
+            Util.UpsertAppSettings(CURRENT_LANE_SETTING_KEY, "IN-IN");
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneInIn();
@@ -163,7 +163,7 @@ namespace AIParkingApplication
 
         private void toolStripMenuItemSwitchLaneInOut_Click(object sender, EventArgs e)
         {
-            Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
+            Util.UpsertAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneInOut();
@@ -172,7 +172,7 @@ namespace AIParkingApplication
 
         private void toolStripMenuItemSwitchLaneOutIn_Click(object sender, EventArgs e)
         {
-            Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "OUT-IN");
+            Util.UpsertAppSettings(CURRENT_LANE_SETTING_KEY, "OUT-IN");
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneOutIn();
@@ -181,7 +181,7 @@ namespace AIParkingApplication
 
         private void toolStripMenuItemSwitchLaneOutOut_Click(object sender, EventArgs e)
         {
-            Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "OUT-OUT");
+            Util.UpsertAppSettings(CURRENT_LANE_SETTING_KEY, "OUT-OUT");
             UpdateMenuStripItemStatus(sender as ToolStripMenuItem);
             StopAllLanes();
             UpdateLaneOutOut();
@@ -262,7 +262,7 @@ namespace AIParkingApplication
                     }
                     else
                     {
-                        Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
+                        Util.UpsertAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
                         UpdateLaneInOut();
                         toolStripMenuItemSwitchLaneInOut.DisableSelected();
                         appLogger.Log(LogLevel.Info, $"Khởi động App đọc config không đủ 2 param: IN-OUT");
@@ -271,7 +271,7 @@ namespace AIParkingApplication
             }
             catch (Exception ex)
             {
-                Util.AddOrUpdateAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
+                Util.UpsertAppSettings(CURRENT_LANE_SETTING_KEY, "IN-OUT");
                 UpdateLaneInOut();
                 toolStripMenuItemSwitchLaneInOut.DisableSelected();
                 Console.WriteLine($"{DateTime.Now.GetTimeFormatted()}\tReadLaneSettingFromConfigurationFile\t{ex.Message}");
diff --git a/AIParkingApplication/LaneOut.cs b/AIParkingApplication/LaneOut.cs
index 517dc10..b36f9c7 100644
--- a/AIParkingApplication/LaneOut.cs
+++ b/AIParkingApplication/LaneOut.cs
@@ -152,7 +152,7 @@ namespace AIParkingApplication
             }
             catch (Exception ex)
             {
-                Util.AddOrUpdateAppSettings("USE_PRINTER", "false");
+                Util.UpsertAppSettings("USE_PRINTER", "false");
                 appLogger.Log(LogLevel.Error, $"Không thể đọc cấu hình: USE_PRINTER. ex: {ex.Message }");
             }
         }
diff --git a/AIParkingApplication/LoginForm.cs b/AIParkingApplication/LoginForm.cs
index 97fbadf..d2d0430 100644
--- a/AIParkingApplication/LoginForm.cs
+++ b/AIParkingApplication/LoginForm.cs
@@ -98,9 +98,9 @@ namespace AIParkingApplication
 
             if (loginResult.IsLoginSuccess)
             {
-                Util.AddOrUpdateAppSettings("DEFAULT_USERNAME", txtUsername.Text);
-                Util.AddOrUpdateAppSettings("DEFAULT_PASSWORD", txtPassword.Text);
-                Util.AddOrUpdateAppSettings("DEFAULT_WEB_SERVER", txtServerAddress.Text);
+                Util.UpsertAppSettings("DEFAULT_USERNAME", txtUsername.Text);
+                Util.UpsertAppSettings("DEFAULT_PASSWORD", txtPassword.Text);
+                Util.UpsertAppSettings("DEFAULT_WEB_SERVER", txtServerAddress.Text);
                 new AIParkingApplicationForm(apiController, ipAddress, loginResult.LoginData, applicationLogger).Show();
                 Hide();
                 applicationLogger.Log(LogLevel.Info, $"Đăng nhập thành công với tài khoản: {txtUsername.Text}");
@@ -130,10 +130,10 @@ namespace AIParkingApplication
             {
                 txtUsername.Text = string.Empty;
                 txtPassword.Text = string.Empty;
-                Util.AddOrUpdateAppSettings("DEFAULT_USERNAME", string.Empty);
-                Util.AddOrUpdateAppSettings("DEFAULT_PASSWORD", string.Empty);
-                Util.AddOrUpdateAppSettings("AUTO_LOGIN", "false");
-                Util.AddOrUpdateAppSettings("DEFAULT_WEB_SERVER", "127.0.0.1:80");
+                Util.UpsertAppSettings("DEFAULT_USERNAME", string.Empty);
+                Util.UpsertAppSettings("DEFAULT_PASSWORD", string.Empty);
+                Util.UpsertAppSettings("AUTO_LOGIN", "false");
+                Util.UpsertAppSettings("DEFAULT_WEB_SERVER", "127.0.0.1:80");
                 chkAutoLogin.Checked = false;
                 Console.WriteLine($"{DateTime.Now.GetTimeFormatted()}\tReadAccessControlDeviceIPConfiguration\t{ex.Message}");
                 applicationLogger.Log(LogLevel.Error, "Không thể đọc cấu hình tài khoản mặc định: DEFAULT_USERNAME, DEFAULT_PASSWORD");
@@ -147,7 +147,7 @@ namespace AIParkingApplication
 
         private void chkAutoLogin_CheckedChanged(object sender, EventArgs e)
         {
-            Util.AddOrUpdateAppSettings("AUTO_LOGIN", (sender as CheckBox).Checked.ToString().ToLower());
+            Util.UpsertAppSettings("AUTO_LOGIN", (sender as CheckBox).Checked.ToString().ToLower());
         }
     }
 }
diff --git a/AIParkingApplication/Util.cs b/AIParkingApplication/Util.cs
index d38286d..401547c 100644
--- a/AIParkingApplication/Util.cs
+++ b/AIParkingApplication/Util.cs
@@ -113,7 +113,7 @@ namespace AIParkingApplication
             int.TryParse(hostParts[1], out port);
         }
 
-        public static void AddOrUpdateAppSettings(string key, string value)
+        public static void UpsertAppSettings(string key, string value)
         {
             try
             {