i have tried that, it says navcore already patched, sorry to be a pain. just checked my ttgo.bif file and it shows this...
CurrentMap=
CurrentMapVersion=0.0
this is my complete ttgo.bif
ttgo.bif:
DeviceName=TomTom ONE
DeviceVersionHW=ONE (v6)
DeviceSerialNumber=Y4xxxxxxxxxx
BootLoaderVersion=55001
ApplicationVersionVersionNumber=8010
ApplicationVersion=9369
CurrentMap=
CurrentMapVersion=0.0
Map(s):
k:\United_Kingdom_and_Republic_of_Ireland_940_5963\
Storage:
Size 488MB, Free 213MB