Probably the SE NavCore your using...
try with NavCore 8.393.1911
which also works with your Truck MAP!
Make a full
backup using windows explorer, tutorial here -->
Here!then download [color="Red"]part1[/color] -->
Here!and extract it into your device (overwrite all files)
then download [color="Red"]part2[/color] -->
Here!and extract it into your device (overwrite all files)
report back results!
1.[color="red"] Engine[/color] [color="blue"]=[/color] iGO 8.3.4.102680
2. [color="red"]Maps[/color] [color="blue"]=[/color] NavteQ 2010.Q4 North America
3. [color="red"]Pois[/color] [color="blue"]=[/color] Tele Atlas Premium 2010.06 North America
4. [color="red"]Skin[/color] [color="blue"]=[/color] Choup 6.9c EUR+
5. [color="red"]Voice[/color] [color="blue"]=[/color] TTS Juliette 2.9 f1hmq-Mikado
6. [color="red"]3D Buildings[/color] [color="blue"]=[/color] NNG 2008.02 North America
7. [color="red"]3D Landmarks[/color] [color="blue"]=[/color] NNG 2009.09 North America
8. [color="red"]3D Terrain[/color] [color="blue"]=[/color] NNG North America