maybe your ttgo.bif was copied using TTHome, it's strange you have a bootloader 10012 on a Start model..
Anyway, you can use a 971_7520 map of M.E. Europe, (due to space requirement- I don't know if it's a 1gb or a 2 gb flash internal memory): but the file size is around 50 mb :D
You can download it from [Only registered and activated users can see links. ]
Put that map in the root of the int. memory , and simply activate using fastActivate .
Obviously , if your navcore is "original" you have to patch also the navcore and reactivate the map of UK .......
Good luck mate......