Which maps did you use for test?
It should make no difference, but GPSTUGA needs it to work with TomTom 2016.03 Europe
I've found another program version that should work on your navigation.
This program is newer than original and to use it, both data.zip and Mobilenavigator.exe must be replaced
File data.zip is modified with some data from original file to be compatible with your system.
Unpack archive with WinRAR and copy files to SD (overwrite)