This way donīt work. You need a 4 GB, better 8 GB Sd card. Put it in the SD-Slot of your Car, Ignition On, Tomtom On. Go to settings to Update. Type it. Wait any second, than TT off, Ignition Off. Any File on your SD-card. Open loopdir.ex in Folder loopdir with R Link Explorer, ttgo.bif inside, make a Copy to the root of your device. Search here in this Board patched 10.855 from @ simba, put it in the sd-card, a Map and safety Cams of your choise with TTactivator, actived the Map/Cams with TTactivator. Put SD in your Car, Ignition on, TT on, Update. That it---all Tools find here with the Search Fuction