If you have the application installed with the same version folder - Install over it.
If not the same version of the folder, install in the following order.
1. Uninstall the previous version and delete the folder Sygic
2. Copy Sygic folder to root internal or external SD
3. Add maps, wcl and content.info with [Only registered and activated users can see links. ]
4. Add [Only registered and activated users can see links. ]
5. Install APK
6. When you first start Sygic do not send e-mail press SKIP. Do not use WiFi while working aplication
New maps v9.01 must download again with the Sygic PC maps DOWNLOADER - [20.8.2015]. The new maps are working on Sygic 15.4.1+