1 files changed, 11 insertions, 0 deletions
diff --git a/Software/Visual_Studio/FSE/Modules/Tango.FSE.Upgrade/ViewModels/ApplicationUpgradeViewVM.cs b/Software/Visual_Studio/FSE/Modules/Tango.FSE.Upgrade/ViewModels/ApplicationUpgradeViewVM.cs
index fbcd87d5e..5b539e2d7 100644
--- a/Software/Visual_Studio/FSE/Modules/Tango.FSE.Upgrade/ViewModels/ApplicationUpgradeViewVM.cs
+++ b/Software/Visual_Studio/FSE/Modules/Tango.FSE.Upgrade/ViewModels/ApplicationUpgradeViewVM.cs
@@ -76,6 +76,17 @@ namespace Tango.FSE.Upgrade.ViewModels
             {
                 IsFree = false;
 
+                if (MachineProvider.IsPPCAvailable)
+                {
+                    var machine = await Services.MachinesService.GetMachine(MachineProvider.Machine.SerialNumber);
+                    if (machine.VersionTag != SelectedVersion.Tag)
+                    {
+                        IsFree = true;
+                        await NotificationProvider.ShowError($"The selected machine cannot be updated to version '{SelectedVersion.VersionAndTag}'.\nPlease modify the machine version tag first.");
+                        return;
+                    }
+                }
+
                 var temporaryTupFile = TemporaryManager.CreateImaginaryFile(".tup");
 
                 Handler = await RemoteUpgradeManager.CreateTupFile(SelectedVersion, SelectedMachine.SerialNumber, temporaryTupFile);