I have a r4 card that has approx 30 games. Just got if off a guy last week. Been playing it for the last 4 days with know problems but when I turned it on yesterday, it loaded then then froze on the last game I was playing. I tried the paper trick that was suggested and it didn't work. I am new to this firmware stuff and was wondering if I could update the r4 without losing these games. Can anyone give me advice on what to do?