this worked for me at the first intend, follow the secuence carefully...

1. Install the original TomTom Go app through Play Store
2. Start the app, skip the wizard and go to the map download, but do not download maps. Important: Do not close the app!
3. Copy the /storage/emulated/0/android/obb/com.tomtom.gplay.navapp folder (for example, to your PC or any other folder on the smartphone)
4. Close and uninstall the original TomTom app
5. Install the patched version v1.17 and do not start it
6. Copy the folder copied under point 3.) back to /storage/emulated/0/android/obb/com.tomtom.gplay.navapp
7. Start the patched version v1.17 and execute the downloads