I just paid off my Samsung Galaxy S10+ that I purchased through Xfinity Mobile, and it turns out I like my old phone better. I placed my SIM card in my old phone and I've been using it for awhile, but now I'd like to sell the Samsung privately. Before I sell it to someone, is there anything else I need to do, besides unlock it when the buyer inserts their own SIM card? How would I go about disassociating the phone with my Xfinity Mobile account?
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