Is there any way to do a complete factory reset on a DSiXL? I've all ready tried: - formatting the system memory, and all it did was wipe all pictures, audio files, ect. - removing battery pack for appx. 5 minutes, and reinserting. all of the above haven't worked. My son updated the system, with out realizing it wouldn't allow the flashcard to work anymore. About ready to trash it if it can't be undone. Thanks for any and all information you can give.