My card has been working fine since Christmas but when I turned it on it just keeps saying loading and will not do anything else. Any fixes.
It may have been corrupted, put all the files onto the computer, format the card (using Panasonics sd formater - use google to find its free) then put back on the system, a few games, but initially NO save files as these can cause it. Try and is all works remember the following to stop it happening again 1) do not turn off the ds when the R4 is loading a game or saving - if you start the wrong game let it start before resetting. 2) leave at least 1MB free space on the card per 2 games - to allow the save file to be created, it the card is full all sorts of strange things start to happen