Here's more info if someone wants to help.

ttgo.bif:
DeviceName=TomTom ONE
DeviceVersionHW=ONE (v8)
DeviceSerialNumber=PExxxxxxxxxx
BootLoaderVersion=10012
ApplicationVersionVersionNumber=8040
ApplicationVersion=9619
CurrentMap=USA_and_Canada
CurrentMapVersion=725.1905

Map(s):
I:\USA_and_Canada\

Storage:
Size 977MB, Free 110MB