No se conecta con el ordenador

Hola resulta que estoy intentando actualizar mi tomtomgo 910 y he retrocedido para tras le he borado la MI y ahora no se me conecta con el ordenador se enciende y de seguida se apaga.
pido ayuda  por favor, gracias de ante mano

un saludo

[TomTomGo]
DeviceName=TomTom GO 940 LIVE
DeviceVersionHW=GO 910
DeviceSerialNumber=V71376H07302
DeviceUniqueID=AKSSJ AJBPJ
RamDiskVersion=20090827
BootLoaderVersion=55120
LinuxVersion=331278
ApplicationVersionVersionNumber=7903

ApplicationVersion=9183
UserLanguage=Español
UserName=
LastConnectionTime=Never
GPSFirmwareVersion=GSW3.2.4TT_3.1.00.12-C35B1.02
BuiltInColorScheme0=Belgica
BuiltInColorScheme1=Brittanica
BuiltInColorScheme2=America
BuiltInColorScheme3=Germanica
BuiltInColorScheme4=Australia
BuiltInColorScheme5=Deuteranopia
BuiltInColorScheme6=Greys
BuiltInColorScheme7=Antarctica
BuiltInColorScheme8=Africa
BuiltInColorScheme9=Astra
CurrentColorSchemeBuiltIn=0
CurrentVoiceInfo=Tim
CurrentMap=
CurrentMapVersion=0.0
Traffic=N
CurrentFuelpricesType=
CurrentFuelpricesTypeString=
CurrentFuelpricesLastFullUpdate=
Features=HDTraffic,PlusTripReporting,HidRemote,HomeBackup,GPRSEngine,VoiceRecording,TTS,TTSCompressed,TTSLoquendo700,IPOD,PhotoViewer,PhotoJPGViewer,PhotoBMPViewer,VoiceBrowser,LinkVolumeToNoise,MapShare,Newyork,Itinerary,Caymann,Durham,Leeway,Handsfree,PhoneFeatures,CarSymbol,RichPOI,RDSTMC,Prague,HardDisk,Microphone,ExternalModem,SMSSupported
SupportedPatchTypes=3F
NrSupportedErrorTypes=132
UserPatchDatVersion=102
CompressedPatchVersion=150udo