Ok.Start with empty save folder. Please check your android version!!! Primo incompatible with android 8 Oreo!
Android 8+ Primo= Black screen. And personal disaster
Android 8+ Primo= Black screen. And personal disaster
Primo android: http://forum.mobilism.org/viewtopic.php?p=3186411#3186411
Primo wince: https://forum.mobilism.org/viewtopic.php?f=718&t=59514&start=37650
Primo wince: https://forum.mobilism.org/viewtopic.php?f=718&t=59514&start=37650