I'm not sure how or why, but I'll be playing on my R4 a couple of days in a row and then out of nowhere... BAM!!! All of my games are gone but the memory on my Micro SD stays full. I can't find them. The folder that contained the games say it's empty, but the friggin memory is full. I don't want to just keep formatting and adding games back on there. I get too attatched to the games I'm playing but make no progress. Please someone say there is a way to find those lost games...
This happened to me. Its when u place so many games and apps u clog up the memory so when u run a new .nds file it has to create an .SAV and it doesn't have space. IT DELETES EVERYTHING. Luckily, i had it backed up my computer.