I have a few EZ Flash 4 Micro SD version carts (new, black version) and I have some of the prior version (white/clear case). When I swap the SD card between the two some games don't load the sav files. Does anyone know if there is a converter for this or am I not doing it right..? Also, the black cart is on kernel 1.76 and the older one is on version 1.72. I'm not sure if the older one can be updated and I'm afraid to do it because I think I will lose saves.