Samsung Ace GT-S5830 Wind - aggiornamento Android

sono un nuovo iscritto ed approfitto subito per chiedervi un supporto, sperando di trovare un valido aiuto: sto cercando da qualche giorno di aggiornare il S.O. del mio Ace (attualmente in versione 2.2.1), con una versione più aggiornata. Purtroppo credo che Kies abbia problemi su Windows7 a 64bit, infatti l'app mi va in crash al pannello "Preparing firmware upgrade components...".

Guardando i log di sistema, trovo:

Application Error:
Faulting application name: GT-S5830.exe, version: 11.7.6.1, time stamp: 0x4e13ef03
Faulting module name: KERNELBASE.dll, version: 6.1.7601.17651, time stamp: 0x4e211319
Exception code: 0xe0434352
Fault offset: 0x0000b9bc
Faulting process id: 0xf40
Faulting application start time: 0x01cce44049e95d59
Faulting application path: C:\Program Files (x86)\Samsung\Kies\External\FirmwareUpdate\GT-S5830\GT-S5830.exe
Faulting module path: C:\Windows\syswow64\KERNELBASE.dll
Report Id: 886e0b8c-5033-11e1-a654-001fc661a1c7

.NET Runtime:
Application: GT-S5830.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.IndexOutOfRangeException
Stack:
at FirmwareUpdate.Agent.Common.DeviceManagement.gBY=( )
at FirmwareUpdate.Agent.Common.DeviceManagement.Devic eDetect(System.String)
at FirmwareUpdate.Models.FirmwareUpdateModel..ctor(Fi rmwareUpdate.Agent.Common.AgentParameter, FirmwareUpdate.Agent.Common.UpdateType, Boolean)
at FirmwareUpdate.ViewModels.FirmwareUpgradeViewModel ..ctor(Boolean)
at FirmwareUpdate.Views.FirmwareUpgradeView..ctor(Boo lean)
at FirmwareUpdate.App.Application_Startup(System.Obje ct, System.Windows.StartupEventArgs)
at System.Windows.Application.OnStartup(System.Window s.StartupEventArgs)
at System.Windows.Application.<.ctor>b__1(System.Obje ct)
at System.Windows.Threading.ExceptionWrapper.Internal RealCall(System.Delegate, System.Object, Int32)
at MS.Internal.Threading.ExceptionFilterHelper.TryCat chWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
at System.Windows.Threading.DispatcherOperation.Invok eImpl()
at System.Windows.Threading.DispatcherOperation.Invok eInSecurityContext(System.Object)
at System.Threading.ExecutionContext.runTryCode(Syste m.Object)
at System.Runtime.CompilerServices.RuntimeHelpers.Exe cuteCodeWithGuaranteedCleanup(TryCode, CleanupCode, System.Object)
at System.Threading.ExecutionContext.RunInternal(Syst em.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Threading.ExecutionContext.Run(System.Threa ding.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threa ding.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Windows.Threading.DispatcherOperation.Invok e()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(In tPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation( System.Object)
at System.Windows.Threading.ExceptionWrapper.Internal RealCall(System.Delegate, System.Object, Int32)
at MS.Internal.Threading.ExceptionFilterHelper.TryCat chWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
at System.Windows.Threading.Dispatcher.InvokeImpl(Sys tem.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(Syste m.Windows.Interop.MSG ByRef)
at System.Windows.Threading.Dispatcher.PushFrameImpl( System.Windows.Threading.DispatcherFrame)
at System.Windows.Threading.Dispatcher.PushFrame(Syst em.Windows.Threading.DispatcherFrame)
at System.Windows.Application.RunDispatcher(System.Ob ject)
at System.Windows.Application.RunInternal(System.Wind ows.Window)
at System.Windows.Application.Run(System.Windows.Wind ow)
at FirmwareUpdate.App.Main()

Ho provato su due computer differenti (ma sempre Win7 64bit) con lo stesso risultato :'(.
Chi ha indicazioni risloutive?
Grazie!!!!!
Ciao
Lino