I have the habit of doing all firmware upgrades through 3DSNUS CIAs because it feels safer than doing it through the system menu. However this time it seems to have backfired as now all my system apps are duplicate. I have 2 cameras, 2 Mii Makers, 2 Mii Plazas, etc. And only the "original" set of apps work. The new ones that appeared at the end of the list just hang the 3DS when launched, how can I get rid of them?