well I'm not the one that has the black box thing, making a backup (just in case) would be a very prudent thing to do though. Whenever doing anything like messing with system titles (which this would be of course) that's a good idea.Was the only thing that worked for me when I had black boxes. Using both devenu and fbi, their different layouts give different perspectives and use with 3ds game database on the web to verify before delete (search the last 5 or 6 numbers) You can take it a step further and create a ctrnand backup before proceeding but I'd assume you've done that anyways.