Quoted from D-Gottlieb:Yesterday I saw that my Premium had locked up while in attract mode... I power cycled and it wouldn't boot. The lights on the cpu board and a few others came on, but nothing else. Just by luck I looked at the sdcard and saw that it was not securely seated in it's slot for some reason. All good now. Has anyone tried backing up the data on the sdcard that's in the game? I am a bit leery of doing that not knowing if I will accidentally corrupt something.....
You can create an image of the sd card with something like win32diskimager if you have a windows machine / card reader. If you are worried about corrupting the sd card, there is usually a lock switch on the card. When in the lock position it would prevent a write from happening, so you do not accidentally write to the card when you intended to read from it.