@Belcher

I have the following info in my ttgo.bif file if it's of any help, I have edited the serial number and device id.

DeviceName=TomTom GO 540 LIVE
DeviceVersionHW=GO 540 LIVE
DeviceSerialNumber=WT*************
DeviceUniqueID=**********
RamDiskVersion=20130404
BootLoaderVersion=10012
LinuxVersion=1000
ApplicationVersionVersionNumber=9510
ApplicationVersion=1234792.1
UserLanguage=English UK
UserName=
LastConnectionTime=1970/01/01,00:00:00,UTC
LastConnectionPhone=
GPSFirmwareVersion=Unknown
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=Kate
CurrentMap=United_Kingdom_and_Republic_of_Ireland_945.6256
CurrentMapVersion=945.6256
Traffic=N
CurrentFuelpricesType=
CurrentFuelpricesTypeString=
CurrentFuelpricesLastFullUpdate=
Features=PlusDownloadDynamic,PlusDownloadGeneral,PlusDownloadMap,PlusDownloadPOI,PlusDownloadScheme,PlusDownloadUpgrade,PlusDownloadVoice,PlusDownloadRingTone,PlusMessageNotification,PlusForceMessageNotification,PlusPushChannel,PlusTraffic,PlusOrRDSTMCTraffic,PlusWeather,PlusEphemeris,PlusSafetyCamerasDynamic,PlusRoadConditions,PlusSafetyCamerasStatic,PlusFuelPrices,HDTraffic,Hercules,HerculesTraffic,Oxford,PlusTripReporting,OnDevicePayments,HidRemote,HomeBackup,GPRSEngine,VoiceRecording,ASR,ASRCnC,TTS,TTSCompressed,TTSLoquendo700,MP3,IPOD,MusicPlayer,PhotoViewer,PhotoJPGViewer,PhotoBMPViewer,VoiceBrowser,LinkVolumeToNoise,MapShare,Newyork,Itinerary,Caymann,Durham,Leeway,Handsfree,PhoneFeatures,CarSymbol,ExtraSounds,UserSkin,RichPOI,FrequentDestinations,PermanentMapCfg,InternalModem,RDSTMC,Bluetooth,SDSlot,InternalFlash,Microphone,LiveServices,SettingsOverride,SDK,USBAccessories,HTTPActivation,MultipleMaps,Traffic,MapOverlays,Documents,WarningSounds,ArrivalSounds,DangerZonesCameras
UnsupportedFeatures=PlusBuddies,PlusFuelPriceTimestamp,TrackMe,TTSUncompressed,TTSNuance51,Games,LinkVolumeToSpeed,ZeroVolumeSupported,CaymannAlwaysOn,MAC,DepartureAdvisor,RouteInfoBackToSummary,VehicleProfile,MapShareVehicleProfile,3DCarModels,TextureRendering,Prague,HardDisk,ExternalModem,SMSSupported,Keyboard,SupportKeyControl,SupportGetAMap,Work,WorkEnabled,WorkPromotion,WorkTuria,WorkMurcia,WorkBremen,WorkUsePlus,WorkStartUpPromotion,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=