Question - do you have to use a blank card to upgrade or will one that is populated with other files (books) be OK?
Seems I've seen comments explaining how to navigate to the upgrade folder on a populated card elsewhere but can't recall the specifics.
I'd like to avoid having to go to the store today and buy a new, blank card if I can just use my existing one which is populated with books.
Thanks in advance for any advice/help!
Doug
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