So the right speaker on my Switch recently stopped working completely. I purchased an extended warranty through the retailer I bought the system from (GameStop) and they said it'd be no problem to replace it. However, I don't think they'll want to deal with CFW and might not accept the console. With that said, how can I purge my Switch of CFW? I'm currently on 7.0.1 running the latest version of Atmosphere, for reference.