diff --git a/MP-TAB3/MP-TAB3.csproj b/MP-TAB3/MP-TAB3.csproj
index 4e3739c2..6d27d4a1 100644
--- a/MP-TAB3/MP-TAB3.csproj
+++ b/MP-TAB3/MP-TAB3.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
-      <Version>6.16.2503.2909</Version>
+      <Version>6.16.2503.2915</Version>
     <ImplicitUsings>enable</ImplicitUsings>
     <RootNamespace>MP_TAB3</RootNamespace>
   </PropertyGroup>
diff --git a/MP-TAB3/Pages/RegNewDevice.razor b/MP-TAB3/Pages/RegNewDevice.razor
index b827597f..fe2a3c09 100644
--- a/MP-TAB3/Pages/RegNewDevice.razor
+++ b/MP-TAB3/Pages/RegNewDevice.razor
@@ -12,16 +12,15 @@
 @if (ShowScanBarcode)
 {
 
-    <BarcodeReader
-                   @ref="barcodeReaderCustom"
+    <BarcodeReader @ref="barcodeReaderCustom"
                    ScanResult="(e) => ScanDoneHandler(e)"
                    Close="ToggleCodeScan"
                    ScanBtnTitle="Scan"
                    ResetBtnTitle="Reset"
                    CloseBtnTitle="Close"
-                   UseBuiltinDiv="false"                   
+                   UseBuiltinDiv="false"
                    SelectDeviceBtnTitle="Select Device">
-    </BarcodeReader> 
+    </BarcodeReader>
 
     <div @ref="barcodeReaderCustom.Element" class="d-flex  justify-content-center">
         <div class="col-12 col-md-8 col-lg-6">
@@ -39,7 +38,7 @@
             </div>
         </div>
     </div>
-   
+
 }
 
 @if (oprList.Count > 0)
diff --git a/MP-TAB3/Pages/RegNewDevice.razor.cs b/MP-TAB3/Pages/RegNewDevice.razor.cs
index d7d00b95..34dc1c5b 100644
--- a/MP-TAB3/Pages/RegNewDevice.razor.cs
+++ b/MP-TAB3/Pages/RegNewDevice.razor.cs
@@ -15,10 +15,13 @@ namespace MP_TAB3.Pages
 
         public void Dispose()
         {
+            barcodeReaderCustom.Stop();
+            barcodeReaderCustom.CloseScan();
+            ShowScanBarcode = false;
             txtError = "";
             matrOpr = 0;
             oprList = new List<AnagOperatoriModel>();
-            //GC.Collect();
+            GC.Collect();
         }
 
         #endregion Public Methods
@@ -135,8 +138,11 @@ namespace MP_TAB3.Pages
                     await TDService.RegDichiarInsert(ulRec);
                 }
 
+                // nascondo scanner...
+                ShowScanBarcode = false;
+
                 // passo a status map
-                await Task.Delay(150);
+                await Task.Delay(50);
                 NavMan.NavigateTo("status-map", true);
             }
             else
diff --git a/MP-TAB3/Pages/StatusMap.razor.cs b/MP-TAB3/Pages/StatusMap.razor.cs
index 1707d8c2..4d6d7fe9 100644
--- a/MP-TAB3/Pages/StatusMap.razor.cs
+++ b/MP-TAB3/Pages/StatusMap.razor.cs
@@ -10,32 +10,6 @@ namespace MP_TAB3.Pages
 {
     public partial class StatusMap : IDisposable
     {
-        #region Public Methods
-
-        public void Dispose()
-        {
-            ListMSE = null;
-            TDFeeder.dataPipe.EA_NewMessage -= DataPipe_EA_NewMessage;
-            TDFeeder.blinkPipe.EA_NewMessage -= BlinkPipe_EA_NewMessage;
-            GC.Collect();
-        }
-
-        #endregion Public Methods
-
-        #region Public Classes
-
-        public class WindowDimension
-        {
-            #region Public Properties
-
-            public int Height { get; set; }
-            public int Width { get; set; }
-
-            #endregion Public Properties
-        }
-
-        #endregion Public Classes
-
         #region Protected Fields
 
         protected bool _showCard = false;
@@ -44,6 +18,14 @@ namespace MP_TAB3.Pages
 
         #endregion Protected Fields
 
+        #region Private Fields
+
+        private static Logger Log = LogManager.GetCurrentClassLogger();
+
+        private bool doBlink = false;
+
+        #endregion Private Fields
+
         #region Protected Properties
 
         [Inject]
@@ -56,6 +38,43 @@ namespace MP_TAB3.Pages
         [Inject]
         protected IJSRuntime JSRuntime { get; set; } = null!;
 
+        /// <summary>
+        /// Numero colonne mappa: calcolato larghezza riga...
+        /// </summary>
+        protected int mapNCol
+        {
+            get
+            {
+                int answ = 2;
+                if (Width > 450)
+                {
+                    if (Width < 1024)
+                    {
+                        answ = (int)Math.Floor((decimal)Width / 200);
+                    }
+                    else
+                    {
+                        answ = (int)Math.Floor((decimal)Width / 220) - 1;
+                    }
+                }
+                return answ;
+            }
+        }
+
+        /// <summary>
+        /// Numero righe mappa: calcolato da num elementi e numMax x riga...
+        /// </summary>
+        protected int mapNRow
+        {
+            get
+            {
+                int answ = 1;
+                int numElems = ListMSE != null ? ListMSE.Count : 1;
+                answ = (int)Math.Ceiling((double)numElems / mapNCol);
+                return answ;
+            }
+        }
+
         [Inject]
         protected StatusData MDataService { get; set; } = null!;
 
@@ -85,6 +104,37 @@ namespace MP_TAB3.Pages
 
         #endregion Protected Properties
 
+        #region Private Properties
+
+        private List<MappaStatoExpl>? AllDataMSE { get; set; } = null;
+
+        private string baseLang { get; set; } = "";
+
+        private List<Macchine>? ListMachineEnabled { get; set; } = null;
+
+        private List<MappaStatoExpl>? ListMSE { get; set; } = null;
+
+        private int MatrOpr
+        {
+            get => MsgServ.MatrOpr;
+        }
+
+        private string tcMode { get; set; } = "";
+
+        #endregion Private Properties
+
+        #region Public Methods
+
+        public void Dispose()
+        {
+            ListMSE = null;
+            TDFeeder.dataPipe.EA_NewMessage -= DataPipe_EA_NewMessage;
+            TDFeeder.blinkPipe.EA_NewMessage -= BlinkPipe_EA_NewMessage;
+            GC.Collect();
+        }
+
+        #endregion Public Methods
+
         #region Protected Methods
 
         /// <summary>
@@ -108,58 +158,6 @@ namespace MP_TAB3.Pages
             return answ;
         }
 
-        /// <summary>
-        /// Numero righe mappa: calcolato da num elementi e numMax x riga...
-        /// </summary>
-        protected int mapNRow
-        {
-            get
-            {
-                int answ = 1;
-                int numElems = ListMSE != null ? ListMSE.Count : 1;
-                answ = (int)Math.Ceiling((double)numElems / mapNCol);
-                return answ;
-            }
-        }
-
-        /// <summary>
-        /// restituisce MSE dato indice
-        /// </summary>
-        /// <param name="mseIdx">Indice MSE richiesto</param>
-        /// <returns></returns>
-        protected MappaStatoExpl? MseById(int mseIdx)
-        {
-            MappaStatoExpl? answ = null;
-            if (ListMSE != null && ListMSE.Count > mseIdx)
-            {
-                answ = ListMSE[mseIdx];
-            }
-            return answ;
-        }
-
-        /// <summary>
-        /// Numero colonne mappa: calcolato larghezza riga...
-        /// </summary>
-        protected int mapNCol
-        {
-            get
-            {
-                int answ = 2;
-                if (Width > 450)
-                {
-                    if (Width < 1024)
-                    {
-                        answ = (int)Math.Floor((decimal)Width / 200);
-                    }
-                    else
-                    {
-                        answ = (int)Math.Floor((decimal)Width / 220) - 1;
-                    }
-                }
-                return answ;
-            }
-        }
-
         protected async Task DoLogout()
         {
             string tgtUrl = "logout";
@@ -197,6 +195,21 @@ namespace MP_TAB3.Pages
             return answ;
         }
 
+        /// <summary>
+        /// restituisce MSE dato indice
+        /// </summary>
+        /// <param name="mseIdx">Indice MSE richiesto</param>
+        /// <returns></returns>
+        protected MappaStatoExpl? MseById(int mseIdx)
+        {
+            MappaStatoExpl? answ = null;
+            if (ListMSE != null && ListMSE.Count > mseIdx)
+            {
+                answ = ListMSE[mseIdx];
+            }
+            return answ;
+        }
+
         protected override async Task OnAfterRenderAsync(bool firstRender)
         {
             if (firstRender)
@@ -208,10 +221,10 @@ namespace MP_TAB3.Pages
                 {
                     ListMachineEnabled = await TabDServ.MacchineByMatrOper(MatrOpr);
                 }
-                AllDataMSE = await MDataService.MseGetAll(true);
-                FiltOprMse();
                 await InvokeAsync(StateHasChanged);
             }
+            // rileggo macchina e pagina
+            await RestoreMaccPage();
             if (ListMSE != null)
             {
                 // salvo in LocalStorage...
@@ -224,27 +237,19 @@ namespace MP_TAB3.Pages
             // ora resetto il resto
             ListMSE = null;
             setDefaults();
+            await LoadMseData();
+            SetupConf();
             TDFeeder.dataPipe.EA_NewMessage += DataPipe_EA_NewMessage;
             TDFeeder.blinkPipe.EA_NewMessage += BlinkPipe_EA_NewMessage;
-            Random rnd = new Random();
-            await Task.Delay(rnd.Next(1, 5));
-            SetupConf();
-            var LastOpenedPage = await MsgServ.LastOpenedPageGet();
-            var currMacc = await MsgServ.IdxMaccGet();
-            if (currMacc != "" && currMacc != null)
-            {
-                await MsgServ.IdxMaccSet(currMacc);
-                if (LastOpenedPage != "" && LastOpenedPage != null)
-                {
-                    NavMan.NavigateTo(LastOpenedPage);
-                }
-            }
         }
 
         protected override async Task OnParametersSetAsync()
         {
-            // x prima cosa elenco macchine operatore...
-            ListMachineEnabled = await TabDServ.MacchineByMatrOper(MatrOpr);
+            // x prima cosa elenco macchine operatore... se mancasse
+            if (ListMachineEnabled == null || ListMachineEnabled.Count == 0)
+            {
+                ListMachineEnabled = await TabDServ.MacchineByMatrOper(MatrOpr);
+            }
         }
 
         protected async Task SaveData(List<MappaStatoExpl> newList)
@@ -262,33 +267,6 @@ namespace MP_TAB3.Pages
 
         #endregion Protected Methods
 
-        #region Private Fields
-
-        private static Logger Log = LogManager.GetCurrentClassLogger();
-
-        private bool doBlink = false;
-
-        #endregion Private Fields
-
-        #region Private Properties
-
-        private List<MappaStatoExpl>? AllDataMSE { get; set; } = null;
-
-        private string baseLang { get; set; } = "";
-
-        private List<Macchine>? ListMachineEnabled { get; set; } = null;
-
-        private List<MappaStatoExpl>? ListMSE { get; set; } = null;
-
-        private int MatrOpr
-        {
-            get => MsgServ.MatrOpr;
-        }
-
-        private string tcMode { get; set; } = "";
-
-        #endregion Private Properties
-
         #region Private Methods
 
         /// <summary>
@@ -367,6 +345,30 @@ namespace MP_TAB3.Pages
             }
         }
 
+        private async Task LoadMseData()
+        {
+            AllDataMSE = await MDataService.MseGetAll(true);
+            FiltOprMse();
+        }
+
+        /// <summary>
+        /// Restore della macchina + pagina selezionate da info di sessione browser
+        /// </summary>
+        /// <returns></returns>
+        private async Task RestoreMaccPage()
+        {
+            var LastOpenedPage = await MsgServ.LastOpenedPageGet();
+            var currMacc = await MsgServ.IdxMaccGet();
+            if (currMacc != "" && currMacc != null)
+            {
+                await MsgServ.IdxMaccSet(currMacc);
+                if (LastOpenedPage != "" && LastOpenedPage != null)
+                {
+                    NavMan.NavigateTo(LastOpenedPage);
+                }
+            }
+        }
+
         private void setDefaults()
         {
             string df = MsgServ.UserPrefSetup("DefCardMode", "full");
@@ -384,5 +386,19 @@ namespace MP_TAB3.Pages
         }
 
         #endregion Private Methods
+
+        #region Public Classes
+
+        public class WindowDimension
+        {
+            #region Public Properties
+
+            public int Height { get; set; }
+            public int Width { get; set; }
+
+            #endregion Public Properties
+        }
+
+        #endregion Public Classes
     }
 }
\ No newline at end of file
diff --git a/MP-TAB3/Resources/ChangeLog.html b/MP-TAB3/Resources/ChangeLog.html
index 33502969..315c5b6e 100644
--- a/MP-TAB3/Resources/ChangeLog.html
+++ b/MP-TAB3/Resources/ChangeLog.html
@@ -1,6 +1,6 @@
 <body>
     <i>Modulo MAPOSPEC </i>
-    <h4>Versione: 6.16.2503.2909</h4>
+    <h4>Versione: 6.16.2503.2915</h4>
     <br /> Note di rilascio:
     <ul>
         <li>
diff --git a/MP-TAB3/Resources/VersNum.txt b/MP-TAB3/Resources/VersNum.txt
index 033f5627..2f24b11f 100644
--- a/MP-TAB3/Resources/VersNum.txt
+++ b/MP-TAB3/Resources/VersNum.txt
@@ -1 +1 @@
-6.16.2503.2909
+6.16.2503.2915
diff --git a/MP-TAB3/Resources/manifest.xml b/MP-TAB3/Resources/manifest.xml
index 9c4fa659..ab0be4ce 100644
--- a/MP-TAB3/Resources/manifest.xml
+++ b/MP-TAB3/Resources/manifest.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <item>
-  <version>6.16.2503.2909</version>
+  <version>6.16.2503.2915</version>
   <url>https://nexus.steamware.net/repository/SWS/MP-TAB3/stable/LAST/MP-TAB3.zip</url>
   <changelog>https://nexus.steamware.net/repository/SWS/MP-TAB3/stable/LAST/ChangeLog.html</changelog>
   <mandatory>false</mandatory>
diff --git a/MP.Data/Services/TabDataFeeder.cs b/MP.Data/Services/TabDataFeeder.cs
index 42c08282..7189b7d8 100644
--- a/MP.Data/Services/TabDataFeeder.cs
+++ b/MP.Data/Services/TabDataFeeder.cs
@@ -9,6 +9,16 @@ namespace MP.Data.Services
 {
     public class TabDataFeeder : StatusData, IDisposable
     {
+        #region Private Fields
+
+        private static System.Timers.Timer fastTimer = new System.Timers.Timer(4000);
+
+        private static Logger Log = LogManager.GetCurrentClassLogger();
+
+        private int fastRefreshMs = 1000;
+
+        #endregion Private Fields
+
         #region Public Constructors
 
         public TabDataFeeder(IConfiguration configuration) : base(configuration)
@@ -70,16 +80,6 @@ namespace MP.Data.Services
 
         #endregion Public Methods
 
-        #region Private Fields
-
-        private static System.Timers.Timer fastTimer = new System.Timers.Timer(4000);
-
-        private static Logger Log = LogManager.GetCurrentClassLogger();
-
-        private int fastRefreshMs = 1000;
-
-        #endregion Private Fields
-
         #region Private Methods
 
         private void ElapsedFastTimer(object? source, System.Timers.ElapsedEventArgs e)
@@ -87,28 +87,28 @@ namespace MP.Data.Services
             try
             {
                 var pUpd = Task.Run(async () =>
-                {
-                    // secondi pari --> blink, secondi dispari --> ricarica
-                    DateTime adesso = DateTime.Now;
-                    int resto = 0;
-                    Math.DivRem(adesso.Second, 2, out resto);
-                    if (resto == 0)
-                    {
-                        // invio in channel blink il segnale
-                        blinkPipe.sendMessage("true");
-                        Log.Debug("Elapsed Fast Timer Blink");
-                    }
-                    else
-                    {
-                        // invio in channel blink segnale false
-                        blinkPipe.sendMessage("false");
-                        // rileggo dati...
-                        var newData = await MseGetAll();
-                        // invio tramite la pipe...
-                        dataPipe.sendMessage(JsonConvert.SerializeObject(newData));
-                        Log.Debug("Elapsed Fast Timer reload");
-                    }
-                });
+                        {
+                            // secondi pari --> blink, secondi dispari --> ricarica
+                            DateTime adesso = DateTime.Now;
+                            int resto = 0;
+                            Math.DivRem(adesso.Second, 2, out resto);
+                            if (resto == 0)
+                            {
+                                // invio in channel blink il segnale
+                                blinkPipe.sendMessage("true");
+                                Log.Trace("Elapsed Fast Timer Blink");
+                            }
+                            else
+                            {
+                                // invio in channel blink segnale false
+                                blinkPipe.sendMessage("false");
+                                // rileggo dati...
+                                var newData = await MseGetAll();
+                                // invio tramite la pipe...
+                                dataPipe.sendMessage(JsonConvert.SerializeObject(newData));
+                                Log.Trace("Elapsed Fast Timer reload");
+                            }
+                        });
                 pUpd.Wait();
             }
             catch (Exception exc)