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I'd imagine you could reset it to factory default https://helpguide.sony.net/dmp/nwa40/v1/en/contents/TP0001449058.html
Sorry, there was a problem. Please try again later.Hi tillthen, Please refer to the link below to delete music or tracks from the Walkman, https://helpguide.sony.net/dmp/nwa40/v1/en/contents/TP0001449042.html?search=delete%20. -Jen
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