If the app fails to start, double-check that the folder name on your storage matches exactly what is expected (usually lowercase igo or uppercase iGO ).
: Make sure you don't have a folder structure like iGO/iGO/ . The files (license, content, etc.) should be immediately inside the main folder. 2. Verify the Content Folder IGO ANDROID 2.4.rar
: Place .3dl and .3dc files in iGO/content/building/ . If the app fails to start, double-check that