I had been using Sygic on my SGP5 for over a year, but last August I noticed that with Sygic version 12X and above, the player would freeze if I touched the Home softkey while a map was displayed. I had an open support ticket with Sygic from August to the present, with Sygic promising they were working on it. But this week I received a final reply that Sygic will no longer be compatible with Galaxy Players. It will run, but you will get a hard freeze if you touch the Home key with a map displayed. In other words, they are not working on a bug fix for this. If you can stay on Sygic 11.2.6 you'll be okay but the maps cannot be updated.
I changed to CoPilot Live USA and it works fine.