diff --git a/ColorControl/ColorControl.csproj b/ColorControl/ColorControl.csproj
index a45f8fe..b3bcf38 100644
--- a/ColorControl/ColorControl.csproj
+++ b/ColorControl/ColorControl.csproj
@@ -27,7 +27,7 @@
     <ProductName>ColorControl</ProductName>
     <PublisherName>Maassoft</PublisherName>
     <ApplicationRevision>0</ApplicationRevision>
-    <ApplicationVersion>4.3.0.0</ApplicationVersion>
+    <ApplicationVersion>4.4.0.0</ApplicationVersion>
     <UseApplicationTrust>false</UseApplicationTrust>
     <PublishWizardCompleted>true</PublishWizardCompleted>
     <BootstrapperEnabled>true</BootstrapperEnabled>
diff --git a/ColorControl/LgDevice.cs b/ColorControl/LgDevice.cs
index dba70d1..29a81d6 100644
--- a/ColorControl/LgDevice.cs
+++ b/ColorControl/LgDevice.cs
@@ -289,7 +289,8 @@ namespace ColorControl
                 _lgTvApi = null;
             }
         }
-        public async Task<bool> ExecutePreset(LgPreset preset, bool reconnect = false)
+
+        public async Task<bool> ExecutePreset(LgPreset preset, bool reconnect, LgServiceConfig config)
         {
             var hasApp = !string.IsNullOrEmpty(preset.appId);
 
@@ -315,7 +316,12 @@ namespace ColorControl
                 {
                     try
                     {
-                        await _lgTvApi.LaunchApp(preset.appId);
+                        dynamic @params = null;
+                        if (config.AllowFirmwareDowngrade && preset.appId.Equals("com.webos.app.softwareupdate"))
+                        {
+                            @params = new { mode = "user", flagUpdate = true };
+                        }
+                        await _lgTvApi.LaunchApp(preset.appId, @params);
                     }
                     catch (Exception ex)
                     {
diff --git a/ColorControl/LgService.cs b/ColorControl/LgService.cs
index 6ce70bb..cb7e8c1 100644
--- a/ColorControl/LgService.cs
+++ b/ColorControl/LgService.cs
@@ -350,7 +350,7 @@ namespace ColorControl
                 return false;
             }
 
-            var result = await device.ExecutePreset(preset, reconnect);
+            var result = await device.ExecutePreset(preset, reconnect, Config);
 
             _lastAppliedPreset = preset;
 
diff --git a/ColorControl/LgServiceConfig.cs b/ColorControl/LgServiceConfig.cs
index 9773eec..070e131 100644
--- a/ColorControl/LgServiceConfig.cs
+++ b/ColorControl/LgServiceConfig.cs
@@ -20,6 +20,8 @@ namespace ColorControl
 
         public bool ShowRemoteControl { get; set; }
 
+        public bool AllowFirmwareDowngrade { get; set; }
+
         public LgServiceConfig()
         {
             PowerOnDelayAfterResume = 5000;
diff --git a/ColorControl/MainForm.Designer.cs b/ColorControl/MainForm.Designer.cs
index 2f1bbd9..ffed692 100644
--- a/ColorControl/MainForm.Designer.cs
+++ b/ColorControl/MainForm.Designer.cs
@@ -178,6 +178,7 @@
             this.edtDelayDisplaySettings = new System.Windows.Forms.NumericUpDown();
             this.label6 = new System.Windows.Forms.Label();
             this.grpGeneralOptions = new System.Windows.Forms.GroupBox();
+            this.chkCheckForUpdates = new System.Windows.Forms.CheckBox();
             this.chkMinimizeToSystemTray = new System.Windows.Forms.CheckBox();
             this.chkMinimizeOnClose = new System.Windows.Forms.CheckBox();
             this.chkStartMinimized = new System.Windows.Forms.CheckBox();
@@ -193,7 +194,7 @@
             this.lbPlugins = new System.Windows.Forms.ListBox();
             this.label7 = new System.Windows.Forms.Label();
             this.lblInfo = new System.Windows.Forms.Label();
-            this.chkCheckForUpdates = new System.Windows.Forms.CheckBox();
+            this.chkLgAllowDowngrade = new System.Windows.Forms.CheckBox();
             this.tcMain.SuspendLayout();
             this.tabNVIDIA.SuspendLayout();
             this.mnuNvPresets.SuspendLayout();
@@ -1610,7 +1611,7 @@
             this.grpMiscellaneousOptions.Controls.Add(this.edtBlankScreenSaverShortcut);
             this.grpMiscellaneousOptions.Controls.Add(this.lblFixChromeFontsDescription);
             this.grpMiscellaneousOptions.Controls.Add(this.chkFixChromeFonts);
-            this.grpMiscellaneousOptions.Location = new System.Drawing.Point(6, 309);
+            this.grpMiscellaneousOptions.Location = new System.Drawing.Point(6, 253);
             this.grpMiscellaneousOptions.Name = "grpMiscellaneousOptions";
             this.grpMiscellaneousOptions.Size = new System.Drawing.Size(400, 130);
             this.grpMiscellaneousOptions.TabIndex = 5;
@@ -1668,14 +1669,15 @@
             // 
             // grpLGOptions
             // 
+            this.grpLGOptions.Controls.Add(this.chkLgAllowDowngrade);
             this.grpLGOptions.Controls.Add(this.chkLgOldWolMechanism);
             this.grpLGOptions.Controls.Add(this.btnLGTestPower);
             this.grpLGOptions.Controls.Add(this.lblLgMaxPowerOnRetriesDescription);
             this.grpLGOptions.Controls.Add(this.edtLgMaxPowerOnRetries);
             this.grpLGOptions.Controls.Add(this.lblLgMaxPowerOnRetries);
-            this.grpLGOptions.Location = new System.Drawing.Point(6, 196);
+            this.grpLGOptions.Location = new System.Drawing.Point(6, 118);
             this.grpLGOptions.Name = "grpLGOptions";
-            this.grpLGOptions.Size = new System.Drawing.Size(403, 107);
+            this.grpLGOptions.Size = new System.Drawing.Size(403, 129);
             this.grpLGOptions.TabIndex = 4;
             this.grpLGOptions.TabStop = false;
             this.grpLGOptions.Text = "LG controller";
@@ -1739,12 +1741,13 @@
             // 
             this.grpHDROptions.Controls.Add(this.edtDelayDisplaySettings);
             this.grpHDROptions.Controls.Add(this.label6);
-            this.grpHDROptions.Location = new System.Drawing.Point(6, 118);
+            this.grpHDROptions.Location = new System.Drawing.Point(412, 316);
             this.grpHDROptions.Name = "grpHDROptions";
             this.grpHDROptions.Size = new System.Drawing.Size(400, 72);
             this.grpHDROptions.TabIndex = 3;
             this.grpHDROptions.TabStop = false;
             this.grpHDROptions.Text = "HDR";
+            this.grpHDROptions.Visible = false;
             // 
             // edtDelayDisplaySettings
             // 
@@ -1789,6 +1792,17 @@
             this.grpGeneralOptions.TabStop = false;
             this.grpGeneralOptions.Text = "General";
             // 
+            // chkCheckForUpdates
+            // 
+            this.chkCheckForUpdates.AutoSize = true;
+            this.chkCheckForUpdates.Location = new System.Drawing.Point(204, 42);
+            this.chkCheckForUpdates.Name = "chkCheckForUpdates";
+            this.chkCheckForUpdates.Size = new System.Drawing.Size(177, 17);
+            this.chkCheckForUpdates.TabIndex = 6;
+            this.chkCheckForUpdates.Text = "Automatically check for updates";
+            this.chkCheckForUpdates.UseVisualStyleBackColor = true;
+            this.chkCheckForUpdates.CheckedChanged += new System.EventHandler(this.chkCheckForUpdates_CheckedChanged);
+            // 
             // chkMinimizeToSystemTray
             // 
             this.chkMinimizeToSystemTray.AutoSize = true;
@@ -1954,16 +1968,16 @@
             this.lblInfo.TabIndex = 1;
             this.lblInfo.Text = "Info";
             // 
-            // chkCheckForUpdates
+            // chkLgAllowDowngrade
             // 
-            this.chkCheckForUpdates.AutoSize = true;
-            this.chkCheckForUpdates.Location = new System.Drawing.Point(204, 42);
-            this.chkCheckForUpdates.Name = "chkCheckForUpdates";
-            this.chkCheckForUpdates.Size = new System.Drawing.Size(177, 17);
-            this.chkCheckForUpdates.TabIndex = 6;
-            this.chkCheckForUpdates.Text = "Automatically check for updates";
-            this.chkCheckForUpdates.UseVisualStyleBackColor = true;
-            this.chkCheckForUpdates.CheckedChanged += new System.EventHandler(this.chkCheckForUpdates_CheckedChanged);
+            this.chkLgAllowDowngrade.AutoSize = true;
+            this.chkLgAllowDowngrade.Location = new System.Drawing.Point(9, 97);
+            this.chkLgAllowDowngrade.Name = "chkLgAllowDowngrade";
+            this.chkLgAllowDowngrade.Size = new System.Drawing.Size(275, 17);
+            this.chkLgAllowDowngrade.TabIndex = 8;
+            this.chkLgAllowDowngrade.Text = "Allow firmware downgrade with Software Update-app";
+            this.chkLgAllowDowngrade.UseVisualStyleBackColor = true;
+            this.chkLgAllowDowngrade.CheckedChanged += new System.EventHandler(this.chkLgAllowDowngrade_CheckedChanged);
             // 
             // MainForm
             // 
@@ -2186,6 +2200,7 @@
         private System.Windows.Forms.Button btnLgPresetEditTriggerConditions;
         private System.Windows.Forms.TextBox edtLgPresetTriggerConditions;
         private System.Windows.Forms.CheckBox chkCheckForUpdates;
+        private System.Windows.Forms.CheckBox chkLgAllowDowngrade;
     }
 }
 
diff --git a/ColorControl/MainForm.cs b/ColorControl/MainForm.cs
index b820d8c..58539ed 100644
--- a/ColorControl/MainForm.cs
+++ b/ColorControl/MainForm.cs
@@ -178,6 +178,7 @@ namespace ColorControl
                 edtLgMaxPowerOnRetries.Value = _lgService.Config.PowerOnRetries;
                 edtLgDeviceFilter.Text = _lgService.Config.DeviceSearchKey;
                 chkLgOldWolMechanism.Checked = _lgService.Config.UseOldNpcapWol;
+                chkLgAllowDowngrade.Checked = _lgService.Config.AllowFirmwareDowngrade;
 
                 var values = Enum.GetValues(typeof(ButtonType));
                 foreach (var button in values)
@@ -2816,5 +2817,32 @@ Do you want to continue?"
                 _config.CheckForUpdates = chkCheckForUpdates.Checked;
             }
         }
+
+        private void chkLgAllowDowngrade_CheckedChanged(object sender, EventArgs e)
+        {
+            if (!_initialized)
+            {
+                return;
+            }
+
+            if (chkLgAllowDowngrade.Checked)
+            {
+                if (MessageForms.QuestionYesNo(
+@"Are you sure you want to enable firmware downgrade functionality with the Software Update-app?
+This may cause irreversible damage to your tv and will void your warranty.
+This app and its creator are in no way accountable for any damages it may cause to your tv."
+                ) != DialogResult.Yes)
+                {
+                    chkLgAllowDowngrade.Checked = false;
+                    return;
+                }
+                MessageForms.InfoOk(
+@"Firmware downgrade functionality activated.
+In order to use it, you must create and execute a preset on the LG controller tab that starts the app Software Update (com.webos.app.softwareupdate)."
+                );
+            }
+
+            _lgService.Config.AllowFirmwareDowngrade = chkLgAllowDowngrade.Checked;
+        }
     }
 }
\ No newline at end of file
diff --git a/ColorControl/MessageForms.cs b/ColorControl/MessageForms.cs
index c4153a0..915d916 100644
--- a/ColorControl/MessageForms.cs
+++ b/ColorControl/MessageForms.cs
@@ -40,7 +40,14 @@ namespace ColorControl
 
         public static void InfoOk(string text, string title = null, string url = null)
         {
-            MessageBox.Show(text, title ?? MainForm?.Text, MessageBoxButtons.OK, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1, 0, url);
+            if (url != null)
+            {
+                MessageBox.Show(text, title ?? MainForm?.Text, MessageBoxButtons.OK, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1, 0, url);
+            }
+            else
+            {
+                MessageBox.Show(text, title ?? MainForm?.Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
+            }
         }
 
         public static DialogResult QuestionYesNo(string text)
diff --git a/ColorControl/Properties/AssemblyInfo.cs b/ColorControl/Properties/AssemblyInfo.cs
index ef59674..8da5b59 100644
--- a/ColorControl/Properties/AssemblyInfo.cs
+++ b/ColorControl/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("4.3.0.0")]
-[assembly: AssemblyFileVersion("4.3.0.0")]
+[assembly: AssemblyVersion("4.4.0.0")]
+[assembly: AssemblyFileVersion("4.4.0.0")]
diff --git a/ColorControl/lgtv/LgTvApi.cs b/ColorControl/lgtv/LgTvApi.cs
index 4a4b273..1ce7ce6 100644
--- a/ColorControl/lgtv/LgTvApi.cs
+++ b/ColorControl/lgtv/LgTvApi.cs
@@ -447,9 +447,19 @@ namespace LgTv
             return appList.OrderBy(e => e.title);
         }
 
-        public async Task<string> LaunchApp(string appId)
+        public async Task<string> LaunchApp(string appId, dynamic @params = null)
         {
-            var requestMessage = new RequestMessage("ssap://system.launcher/launch", new { id = appId });
+            dynamic payload;
+            if (@params != null)
+            {
+                payload = new { id = appId, @params = @params };
+            }
+            else
+            {
+                payload = new { id = appId };
+            }
+
+            var requestMessage = new RequestMessage("ssap://system.launcher/launch", payload);
             var response = await _connection.SendCommandAsync(requestMessage);
             return (string)response.sessionId;
         }