"DTL Connection" downgrade my lumia 620

[Terfas Farok]

Hey guys,
I did upgrade my Lumia 620 and now my Touch screen dont work so i tried to downgrade but i could i always get this message !
FYI, i know how to downgrade cuz i did it 2 or 3 times before, but this time it's did work ! Any advice ?

DTL Connection: Could not connect to media. DTL Back-End error code = 0x8400A403. DTL Back-End: Driver initialization failed. DCM status code = 0x84004415, Common USB DCM: No device found from the target USB port, last error code = 0x80070422. .
Exception:
System.Runtime.InteropServices.COMException (0x8400AC35): DTL Connection: Could not connect to media. DTL Back-End error code = 0x8400A403. DTL Back-End: Driver initialization failed. DCM status code = 0x84004415, Common USB DCM: No device found from the target USB port, last error code = 0x80070422. .
? FuseLib.DtlConnectionClass.ConnectToMedia()
? Nokia.CareSuite.PlugIns.MurzimRecovery.RecoveryConnectionManager..ctor(FuseLoader fuseLoader, IConnection connection, UserInteractionDelegate userInteractionDelegate)
? Nokia.CareSuite.PlugIns.MurzimRecovery.RecoveryConnectionManager..ctor(IConnection connection, UserInteractionDelegate userInteractionDelegate)
? Nokia.CareSuite.PlugIns.MurzimRecovery.RecoveryDialog.RecoveryDialogModel.Flash()
? Nokia.CareSuite.PlugIns.MurzimRecovery.RecoveryDialog.RecoveryDialogModel.<HandleDownloadVariantPackageCompleted>b__b(Object state)