Ok guys, I've got my R4i deluxe for few months and keep getting this issue since the 1st day. I'm on the newest fw (4.02b) and most of games got corrupt when I delete and recopy them to the SD card. When I got a new game and there was no more space on SD card, I delete some games, to spare some space for the new games, then after finishing them, I switched back to my old games that got deleted early on (but already had the save files on big SD card that contains R4 fw). The thing is when those old game booted, all save files got corrupt message and I have to replay them from the beginning. Note that I keep all my roms in 3ds and had no header patch for them. They are the same since the last time I deleted them. The save files load fine as long as the games are in the SD card, but as soon as I delete them, then try to recopy back to card, save files get corrupt and I lost all my progress. My 3DS is 4.1 E and some of my games load just fine such as fantasy life and bravely default even after being deleted and then recopied. But most other games have the issue. Any help would be appreciated. Sorry for my bad English.