Ayuda para actualizar Tomtom G0 250

Hola los datos del GPS son los siguientes:

[TomTomGo]
DeviceName=TomTom GO 520
DeviceVersionHW=GO 520
DeviceSerialNumber=M4XXXXXXXXXX
DeviceUniqueID=XXXXXXXXXXXXX
RamDiskVersion=20130404
BootLoaderVersion=55120
LinuxVersion=842337
ApplicationVersionVersionNumber=9510
ApplicationVersion=1234792.1
UserLanguage=Español
UserName=XXXXXXXXXXXXXX
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
BuiltInColorScheme10=Asia
BuiltInColorScheme11=Brasilia
BuiltInColorScheme12=Concordia
BuiltInColorScheme13=NewAnglia
CurrentColorSchemeBuiltIn=11
CurrentVoiceInfo=Carmen
CurrentMap=Iberia
CurrentMapVersion=880.3810
Traffic=N
CurrentFuelpricesType=
CurrentFuelpricesTypeString=
CurrentFuelpricesLastFullUpdate=
ValueRatio=Aej7YW+do2ql7PA4/Q==
Features=PlusDownloadDynamic,PlusDownloadGeneral,PlusDownloadMap,PlusDownloadPOI,PlusDownloadScheme,PlusDownloadUpgrade,PlusDownloadVoice,PlusDownloadRingTone,PlusMessageNotification,PlusPushChannel,PlusTraffic,PlusOrRDSTMCTraffic,PlusWeather,PlusEphemeris,PlusSafetyCamerasDynamic,PlusRoadConditions,PlusSafetyCamerasStatic,PlusFuelPrices,HDTraffic,PlusTripReporting,HidRemote,HomeBackup,GPRSEngine,VoiceRecording,ASR,TTS,TTSCompressed,MP3,IPOD,MusicPlayer,PhotoViewer,PhotoJPGViewer,PhotoBMPViewer,VoiceBrowser,LinkVolumeToNoise,MapShare,Newyork,Itinerary,Caymann,Durham,Leeway,Handsfree,PhoneFeatures,CarSymbol,RichPOI,FrequentDestinations,PermanentMapCfg,RDSTMC,Prague,Bluetooth,SDSlot,InternalFlash,Microphone,ExternalModem,SMSSupported,SettingsOverride,SDK,USBAccessories,HTTPActivation,MultipleMaps,Traffic,MapOverlays,Documents,WarningSounds,ArrivalSounds,DangerZonesCameras
UnsupportedFeatures=PlusForceMessageNotification,PlusBuddies,PlusFuelPriceTimestamp,Hercules,HerculesTraffic,Oxford,TrackMe,OnDevicePayments,ASRCnC,TTSUncompressed,TTSLoquendo700,TTSNuance51,Games,LinkVolumeToSpeed,ZeroVolumeSupported,CaymannAlwaysOn,MAC,DepartureAdvisor,RouteInfoBackToSummary,VehicleProfile,MapShareVehicleProfile,3DCarModels,TextureRendering,ExtraSounds,UserSkin,InternalModem,HardDisk,Keyboard,SupportKeyControl,SupportGetAMap,Work,WorkEnabled,WorkPromotion,WorkTuria,WorkMurcia,WorkBremen,WorkUsePlus,WorkStartUpPromotion,LiveServices,SimpleMapBrowserButtonBar,AltDefaultCarSymbol
SupportedPatchTypes=3F
NrSupportedErrorTypes=138
UserPatchDatVersion=102
CompressedPatchVersion=200
MapServerPatchDatVersion=105
DeletedPoiDatVersion=200
ServerLineIndexDatVersion=102
ServerNameIndexDatVersion=102
MapShareSupportedProviders=243
CharacterSet=TTU
VehicleBrand=
VehicleModel=
VehicleOptions=


Que mapa debería descargar para actualizarlo, gracias y perdon por las molestias.

Entiendo que el mas adecuado es el 955.6746, o el 955.6745?, el último no tiene HNR ni Iqroutes, que no se para que sirven.

Gracias por vuestra ayuda.