diff --git a/projects/GKCore/AssemblyInfo.cs b/projects/GKCore/AssemblyInfo.cs
index 77892ba3b..b8a227926 100644
--- a/projects/GKCore/AssemblyInfo.cs
+++ b/projects/GKCore/AssemblyInfo.cs
@@ -6,7 +6,7 @@
 [assembly: AssemblyDescription("")]
 [assembly: AssemblyProduct(GKData.APP_TITLE)]
 [assembly: AssemblyCopyright(GKData.APP_COPYRIGHT)]
-[assembly: AssemblyVersion("4.0.0.0")]
+[assembly: AssemblyVersion(GKData.APP_VERSION_3X)]
 [assembly: AssemblyCulture("")]
 
 #if DEBUG
diff --git a/projects/GKCore/GKCore/AppHost.cs b/projects/GKCore/GKCore/AppHost.cs
index d79e11bd1..0db359294 100644
--- a/projects/GKCore/GKCore/AppHost.cs
+++ b/projects/GKCore/GKCore/AppHost.cs
@@ -269,9 +269,15 @@ public void SaveWinMRU(IBaseWindow baseWin)
             if (mf != null) SaveWinState(baseWin, mf);
         }
 
-        public abstract void SaveWinState(IBaseWindow baseWin, MRUFile mf);
+        public virtual void SaveWinState(IBaseWindow baseWin, MRUFile mf)
+        {
+            // May have a desktop-only implementation
+        }
 
-        public abstract void RestoreWinState(IBaseWindow baseWin, MRUFile mf);
+        public virtual void RestoreWinState(IBaseWindow baseWin, MRUFile mf)
+        {
+            // May have a desktop-only implementation
+        }
 
         public void RestoreWinMRU(IBaseWindow baseWin)
         {
@@ -321,16 +327,15 @@ public void SaveLastBases()
 
         public abstract bool ExecuteWorkExt(ProgressStart proc, string title);
 
-        public abstract void LayoutWindows(WinLayout layout);
+        public virtual void LayoutWindows(WinLayout layout)
+        {
+            // May have a desktop-only implementation
+        }
 
         #region Extended clipboard functions
 
         public abstract void SetClipboardText(string text);
 
-        //public abstract void SetClipboardObject(string objTypeName, string objContent);
-
-        //public abstract string GetClipboardObject(string objTypeName);
-
         public void SetClipboardObj<T>(object obj) where T : class
         {
             /*string objName = obj.GetType().FullName;
@@ -374,24 +379,22 @@ public T GetClipboardObj<T>() where T : class
 
         #region Executing environment
 
-        private static Assembly GetAssembly()
+        private static Assembly GetImplementationAssembly()
         {
-            Assembly asm = Assembly.GetEntryAssembly();
-            if (asm == null) {
-                asm = Assembly.GetExecutingAssembly();
-            }
+            Assembly asm = (fInstance != null) ? fInstance.GetType().Assembly : Assembly.GetEntryAssembly();
+            if (asm == null) asm = Assembly.GetExecutingAssembly();
             return asm;
         }
 
         public static Version GetAppVersion()
         {
-            var asm = GetAssembly();
+            var asm = GetImplementationAssembly();
             return (asm == null) ? null : asm.GetName().Version;
         }
 
         public static string GetAppCopyright()
         {
-            var asm = GetAssembly();
+            var asm = GetImplementationAssembly();
             if (asm == null) {
                 return string.Empty;
             } else {
@@ -530,7 +533,10 @@ public void WidgetClose(IWidget widget)
 
         public abstract ExtRect GetActiveScreenWorkingArea();
 
-        public abstract void WidgetLocate(IWidgetForm view, WidgetLocation location);
+        public virtual void WidgetLocate(IWidgetForm view, WidgetLocation location)
+        {
+            // May have a desktop-only implementation
+        }
 
         protected ExtPoint WidgetLocate(ExtRect formBounds, WidgetLocation location)
         {
diff --git a/projects/GKvX/GEDKeeperX.Android/GEDKeeperX.Android.csproj b/projects/GKvX/GEDKeeperX.Android/GEDKeeperX.Android.csproj
index 1952d3937..fcb57c3b3 100644
--- a/projects/GKvX/GEDKeeperX.Android/GEDKeeperX.Android.csproj
+++ b/projects/GKvX/GEDKeeperX.Android/GEDKeeperX.Android.csproj
@@ -49,10 +49,11 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Xamarin.Forms" Version="5.0.0.2291" />
+    <PackageReference Include="Xamarin.Forms" Version="5.0.0.2545" />
+    <PackageReference Include="Xamarin.Essentials" Version="1.7.3" />
+
     <PackageReference Include="Xamarin.Forms.InputKit" Version="3.7.2" />
     <PackageReference Include="Xamarin.Forms.DataGrid" Version="4.8.0" />
-    <PackageReference Include="Xamarin.Essentials" Version="1.7.0" />
     <PackageReference Include="Xamarin.CommunityToolkit" Version="2.0.6" />
     <PackageReference Include="Xamarin.Android.Support.Design" Version="28.0.0.3" />
     <PackageReference Include="Xamarin.Android.Support.v7.AppCompat" Version="28.0.0.3" />
diff --git a/projects/GKvX/GEDKeeperX.UWP/GEDKeeperX.UWP.csproj b/projects/GKvX/GEDKeeperX.UWP/GEDKeeperX.UWP.csproj
index ca56ac84f..f9e30fe09 100644
--- a/projects/GKvX/GEDKeeperX.UWP/GEDKeeperX.UWP.csproj
+++ b/projects/GKvX/GEDKeeperX.UWP/GEDKeeperX.UWP.csproj
@@ -141,10 +141,11 @@
     </Page>
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Xamarin.Forms" Version="5.0.0.2291" />
+    <PackageReference Include="Xamarin.Forms" Version="5.0.0.2545" />
+    <PackageReference Include="Xamarin.Essentials" Version="1.7.3" />
+
     <PackageReference Include="Xamarin.Forms.InputKit" Version="3.7.2" />
     <PackageReference Include="Xamarin.Forms.DataGrid" Version="4.8.0" />
-    <PackageReference Include="Xamarin.Essentials" Version="1.7.0" />
     <PackageReference Include="Xamarin.CommunityToolkit" Version="2.0.6" />
     <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform" Version="6.2.14" />
   </ItemGroup>
diff --git a/projects/GKvX/GEDKeeperX.iOS/GEDKeeperX.iOS.csproj b/projects/GKvX/GEDKeeperX.iOS/GEDKeeperX.iOS.csproj
index b8505a454..79d224822 100644
--- a/projects/GKvX/GEDKeeperX.iOS/GEDKeeperX.iOS.csproj
+++ b/projects/GKvX/GEDKeeperX.iOS/GEDKeeperX.iOS.csproj
@@ -123,10 +123,11 @@
     <Reference Include="Xamarin.iOS" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Xamarin.Forms" Version="5.0.0.2291" />
+    <PackageReference Include="Xamarin.Forms" Version="5.0.0.2545" />
+    <PackageReference Include="Xamarin.Essentials" Version="1.7.3" />
+
     <PackageReference Include="Xamarin.Forms.InputKit" Version="3.7.2" />
     <PackageReference Include="Xamarin.Forms.DataGrid" Version="4.8.0" />
-    <PackageReference Include="Xamarin.Essentials" Version="1.7.0" />
     <PackageReference Include="Xamarin.CommunityToolkit" Version="2.0.6" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
diff --git a/projects/GKvX/GEDKeeperX/GEDKeeperX.csproj b/projects/GKvX/GEDKeeperX/GEDKeeperX.csproj
index 7f10c1e61..8cf10a9c2 100644
--- a/projects/GKvX/GEDKeeperX/GEDKeeperX.csproj
+++ b/projects/GKvX/GEDKeeperX/GEDKeeperX.csproj
@@ -24,10 +24,11 @@
     <ItemGroup>
         <PackageReference Include="System.Text.Encoding.CodePages" Version="7.0.0" />
 
-        <PackageReference Include="Xamarin.Forms" Version="5.0.0.2291" />
+        <PackageReference Include="Xamarin.Forms" Version="5.0.0.2545" />
+        <PackageReference Include="Xamarin.Essentials" Version="1.7.3" />
+
         <PackageReference Include="Xamarin.Forms.InputKit" Version="3.7.2" />
         <PackageReference Include="Xamarin.Forms.DataGrid" Version="4.8.0" />
-        <PackageReference Include="Xamarin.Essentials" Version="1.7.0" />
         <PackageReference Include="Xamarin.CommunityToolkit" Version="2.0.6" />
 
         <PackageReference Include="SkiaSharp.Views.Forms" Version="2.80.2" />
diff --git a/projects/GKvX/GEDKeeperX/GKUI/Components/GKListView.xaml.cs b/projects/GKvX/GEDKeeperX/GKUI/Components/GKListView.xaml.cs
index 6528c716e..069616783 100644
--- a/projects/GKvX/GEDKeeperX/GKUI/Components/GKListView.xaml.cs
+++ b/projects/GKvX/GEDKeeperX/GKUI/Components/GKListView.xaml.cs
@@ -582,8 +582,10 @@ public void SelectItem(int index)
                     item = fListMan.ContentList[index];
             }
 
-            if (item != null)
+            if (item != null) {
                 SelectedItem = item;
+                ScrollTo(item, ScrollToPosition.MakeVisible, true);
+            }
         }
 
         public void SelectItem(object rowData)
diff --git a/projects/GKvX/GEDKeeperX/GKUI/Components/UIHelper.cs b/projects/GKvX/GEDKeeperX/GKUI/Components/UIHelper.cs
index bdd3d6e84..11b329b47 100644
--- a/projects/GKvX/GEDKeeperX/GKUI/Components/UIHelper.cs
+++ b/projects/GKvX/GEDKeeperX/GKUI/Components/UIHelper.cs
@@ -81,10 +81,5 @@ public static ImageSource LoadResourceImage(Type baseType, string resName)
         {
             return ImageSource.FromResource(resName, baseType.Assembly);
         }
-
-        public static void SetClipboardText(string text)
-        {
-            Clipboard.SetTextAsync(text);
-        }
     }
 }
diff --git a/projects/GKvX/GEDKeeperX/GKUI/Forms/AboutPage.xaml b/projects/GKvX/GEDKeeperX/GKUI/Forms/AboutPage.xaml
index 73aafd510..9b2ea9033 100644
--- a/projects/GKvX/GEDKeeperX/GKUI/Forms/AboutPage.xaml
+++ b/projects/GKvX/GEDKeeperX/GKUI/Forms/AboutPage.xaml
@@ -39,11 +39,6 @@
                         BackgroundColor="{StaticResource Primary}" TextColor="White" />
         </StackLayout>
 
-        <StackLayout Spacing="8" Orientation="Horizontal">
-            <Label HorizontalOptions="FillAndExpand" />
-            <Button x:Name="btnClose" Style="{StaticResource dlgBtn}" ImageSource="{plat:ImageResourceExt Resources.btn_accept.gif}" />
-        </StackLayout>
-
     </StackLayout>
 
 </ContentPage>
diff --git a/projects/GKvX/GEDKeeperX/GKUI/Forms/AboutPage.xaml.cs b/projects/GKvX/GEDKeeperX/GKUI/Forms/AboutPage.xaml.cs
index ee2f9c043..b4af28056 100644
--- a/projects/GKvX/GEDKeeperX/GKUI/Forms/AboutPage.xaml.cs
+++ b/projects/GKvX/GEDKeeperX/GKUI/Forms/AboutPage.xaml.cs
@@ -21,6 +21,7 @@
 using System;
 using GKCore;
 using GKCore.Options;
+using Xamarin.Essentials;
 using Xamarin.Forms;
 
 namespace GKUI.Forms
@@ -31,10 +32,8 @@ public AboutPage()
         {
             InitializeComponent();
 
-            // FontSize="12" FontAttributes="Bold"
-
             Title = LangMan.LS(LSID.MIAbout);
-            btnClose.Text = LangMan.LS(LSID.DlgClose);
+            //btnClose.Text = LangMan.LS(LSID.DlgClose);
             //lblProduct.Text = GKData.APP_TITLE;
             lblVersion.Text = @"Version " + AppHost.GetAppVersion();
             lblCopyright.Text = AppHost.GetAppCopyright();
@@ -48,11 +47,11 @@ public AboutPage()
             }
         }
 
-        private void lblURL_Clicked(object sender, EventArgs e)
+        private async void lblURL_Clicked(object sender, EventArgs e)
         {
             var btn = sender as Button;
             if (btn != null) {
-                Device.OpenUri(new Uri(btn.Text));
+                await Launcher.TryOpenAsync(new Uri(btn.Text));
             }
         }
     }
diff --git a/projects/GKvX/GEDKeeperX/GKUI/Forms/LanguageSelectDlg.xaml b/projects/GKvX/GEDKeeperX/GKUI/Forms/LanguageSelectDlg.xaml
index d6ee08fe3..c42f14f5a 100644
--- a/projects/GKvX/GEDKeeperX/GKUI/Forms/LanguageSelectDlg.xaml
+++ b/projects/GKvX/GEDKeeperX/GKUI/Forms/LanguageSelectDlg.xaml
@@ -4,7 +4,8 @@
     xmlns:forms="clr-namespace:GKUI.Forms" xmlns:plat="clr-namespace:GKUI.Platform" xmlns:comp="clr-namespace:GKUI.Components"
     xmlns:mvp="clr-namespace:GKCore.Design.Views;assembly=GKCore" xmlns:contr="clr-namespace:GKCore.Controllers;assembly=GKCore"
     x:Class="GKUI.Forms.LanguageSelectDlg" Title="Select language"
-    x:TypeArguments="mvp:ILanguageSelectDlg, contr:LanguageSelectDlgController">
+    x:TypeArguments="mvp:ILanguageSelectDlg, contr:LanguageSelectDlgController"
+    Size="300,300">
 
     <StackLayout Orientation="Vertical" Spacing="8" Padding="8">
 
diff --git a/projects/GKvX/GEDKeeperX/GKUI/Forms/LaunchPage.xaml.cs b/projects/GKvX/GEDKeeperX/GKUI/Forms/LaunchPage.xaml.cs
index 741f735cb..75c15a496 100644
--- a/projects/GKvX/GEDKeeperX/GKUI/Forms/LaunchPage.xaml.cs
+++ b/projects/GKvX/GEDKeeperX/GKUI/Forms/LaunchPage.xaml.cs
@@ -82,66 +82,13 @@ public LaunchPage()
             BindingContext = this;
         }
 
-        private void Item_Tapped(object sender, EventArgs e)
-        {
-            var item = launchList.SelectedItem as LaunchItem;
-            if (item != null) {
-                AppHost.StdDialogs.ShowMessage($"Tapped {item.Title}");
-                //item.Action?.Invoke();
-            }
-            /*
-                            <Grid>
-                                <Grid.GestureRecognizers>
-                                    <TapGestureRecognizer Tapped="Item_Tapped" />
-                                </Grid.GestureRecognizers>
-                            </Grid>
-             */
-        }
-
         private async void lv_ItemSelected(object sender, SelectedItemChangedEventArgs e)
         {
             var item = e.SelectedItem as LaunchItem;
             item?.Action?.Invoke();
         }
-
-        /*public void FlowScrollTo(object item)
-        {
-            flowListView.FlowScrollTo(item, ScrollToPosition.MakeVisible, true);
-        }*/
     }
 
-    /*
-        <ListView x:Name="launchList" HasUnevenRows="True" ItemsSource="{Binding LaunchItems}" IsGroupingEnabled="True">
-            <ListView.GroupHeaderTemplate>
-                <DataTemplate>
-                    <ViewCell>
-                        <Label Text="{Binding Name}" FontSize="Large" Margin="8" />
-                    </ViewCell>
-                </DataTemplate>
-            </ListView.GroupHeaderTemplate>
-            <ListView.ItemTemplate>
-                <DataTemplate>
-                    <ViewCell>
-                        <Label Text="{Binding Title}" Margin="6" />
-                    </ViewCell>
-                </DataTemplate>
-            </ListView.ItemTemplate>
-        </ListView>
-
-        <CollectionView x:Name="launchList" ItemsSource="{Binding LaunchItems}" IsGrouped="true">
-            <CollectionView.GroupHeaderTemplate>
-                <DataTemplate>
-                    <Label Text="{Binding Name}" TextColor="Orange" FontSize="Large" FontAttributes="Bold" Margin="8" />
-                </DataTemplate>
-            </CollectionView.GroupHeaderTemplate>
-            <CollectionView.ItemTemplate>
-                <DataTemplate>
-                        <Label Text="{Binding Title}" Margin="6" />
-                </DataTemplate>
-            </CollectionView.ItemTemplate>
-        </CollectionView>
-     */
-
     public class Grouping<K, T> : ObservableCollection<T>
     {
         public K Name { get; private set; }
diff --git a/projects/GKvX/GEDKeeperX/GKUI/Forms/PrintableForm.cs b/projects/GKvX/GEDKeeperX/GKUI/Forms/PrintableForm.cs
index c259f0ed1..60999e4d1 100644
--- a/projects/GKvX/GEDKeeperX/GKUI/Forms/PrintableForm.cs
+++ b/projects/GKvX/GEDKeeperX/GKUI/Forms/PrintableForm.cs
@@ -18,8 +18,6 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-//define DEBUG_PRINT
-
 using GKCore.Design.Graphics;
 
 namespace GKUI.Forms
@@ -33,10 +31,6 @@ protected PrintableForm()
         {
         }
 
-        #region Internal print support
-
-        #endregion
-
         #region Public interface
 
         protected virtual IPrintable GetPrintable()
diff --git a/projects/GKvX/GEDKeeperX/GKUI/Platform/Handlers/ControlHandlers.cs b/projects/GKvX/GEDKeeperX/GKUI/Platform/Handlers/ControlHandlers.cs
index 6d5535819..3dadc0e6d 100644
--- a/projects/GKvX/GEDKeeperX/GKUI/Platform/Handlers/ControlHandlers.cs
+++ b/projects/GKvX/GEDKeeperX/GKUI/Platform/Handlers/ControlHandlers.cs
@@ -18,8 +18,8 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+using GKCore;
 using GKCore.Design.Controls;
-using GKUI.Components;
 using Xamarin.Forms;
 
 namespace GKUI.Platform
@@ -86,7 +86,7 @@ private void SetBackColor()
 
         public void Copy()
         {
-            UIHelper.SetClipboardText(SelectedText);
+            AppHost.Instance.SetClipboardText(SelectedText);
         }
 
         public void SelectAll()
@@ -155,7 +155,7 @@ private void SetBackColor()
 
         public void Copy()
         {
-            UIHelper.SetClipboardText(SelectedText);
+            AppHost.Instance.SetClipboardText(SelectedText);
         }
 
         public void SelectAll()
diff --git a/projects/GKvX/GEDKeeperX/GKUI/Platform/Sandbox.cs b/projects/GKvX/GEDKeeperX/GKUI/Platform/Sandbox.cs
index beb76ac3d..742d3bf51 100644
--- a/projects/GKvX/GEDKeeperX/GKUI/Platform/Sandbox.cs
+++ b/projects/GKvX/GEDKeeperX/GKUI/Platform/Sandbox.cs
@@ -11,7 +11,6 @@
 
 namespace GKUI.Platform
 {
-    //[Preserve(AllMembers = true)]
     [ContentProperty("Source")]
     public class ImageResourceExt : IMarkupExtension
     {
diff --git a/projects/GKvX/GEDKeeperX/GKUI/Platform/XFAppHost.cs b/projects/GKvX/GEDKeeperX/GKUI/Platform/XFAppHost.cs
index caadf0ece..73c33bcac 100644
--- a/projects/GKvX/GEDKeeperX/GKUI/Platform/XFAppHost.cs
+++ b/projects/GKvX/GEDKeeperX/GKUI/Platform/XFAppHost.cs
@@ -29,11 +29,11 @@
 using GKCore.Design.Views;
 using GKCore.Interfaces;
 using GKCore.IoC;
-using GKCore.Options;
 using GKCore.Types;
 using GKUI.Components;
 using GKUI.Forms;
 using Xam.Plugin.TabView;
+using Xamarin.Essentials;
 using Xamarin.Forms;
 using XFRadioButton = Xamarin.Forms.RadioButton;
 
@@ -101,14 +101,6 @@ public override void EnableWindow(IWidgetForm form, bool value)
             throw new NotImplementedException();
         }
 
-        public override void SaveWinState(IBaseWindow baseWin, MRUFile mf)
-        {
-        }
-
-        public override void RestoreWinState(IBaseWindow baseWin, MRUFile mf)
-        {
-        }
-
         public override ITimer CreateTimer(double msInterval, EventHandler elapsedHandler)
         {
             var result = new XFUITimer(msInterval, elapsedHandler);
@@ -158,11 +150,6 @@ public override ExtRect GetActiveScreenWorkingArea()
             throw new NotImplementedException();
         }
 
-        public override void WidgetLocate(IWidgetForm view, WidgetLocation location)
-        {
-            throw new NotSupportedException();
-        }
-
         public override string SelectFolder(string folderPath)
         {
             return string.Empty;
@@ -198,13 +185,6 @@ public override bool HasFeatureSupport(Feature feature)
             }
         }
 
-        public override void LayoutWindows(WinLayout layout)
-        {
-            throw new NotSupportedException();
-        }
-
-        #region KeyLayout functions
-
         public override int GetKeyLayout()
         {
             return 0;
@@ -216,11 +196,9 @@ public override void SetKeyLayout(int layout)
 
         public override void SetClipboardText(string text)
         {
-            UIHelper.SetClipboardText(text);
+            Clipboard.SetTextAsync(text);
         }
 
-        #endregion
-
         #region Bootstrapper
 
         /// <summary>
diff --git a/projects/GKvX/NOTES.md b/projects/GKvX/NOTES.md
index 57bbbf5b0..385edf916 100644
--- a/projects/GKvX/NOTES.md
+++ b/projects/GKvX/NOTES.md
@@ -22,6 +22,7 @@
 # Problems
 
 1. Xamarin.Forms.DataGrid >= 5.0.0.2515 - dont works
+2. Xamarin.Forms.DataGrid 4.8.0 - selecting items does not work correctly after scrolling
 
 
 # Dev Requirements
@@ -33,3 +34,13 @@ Project: Android 10.0 Q (API 29), MinAndVer 5.0 (API 21), MaxAndVer 8.1 (API 27)
 Emulator: sc query intelhaxm
 
 Android Device Image: Tablet M 10.1in (Android Pie 9.0 - API 28)
+
+# Xamarin.Essentials
+
+1.7.0 -> TargetFrameworkVersion=v10.0, android:targetSdkVersion="29"
+
+## Works
+
+Xamarin.Forms 5.0.0.2291-2545
+Xamarin.Essentials 1.7.0-3
+Xamarin.Forms.DataGrid 4.8.0