How should I go about removing the twl mod?I know for sure that any TWL modifications (the firm that runs DSi and DS games) are not recommended, but I'm not sure about DSi apps.. If you have the newest FBI, you can try to delete it. In FBI, there is an option called "Titles". It will list everything you have installed and you should be able to remove the r4 launcher, hopefully.
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It didnt give me any problems the first time I tried