Quote:
Originally Posted by rogerinnyc
Again, just for folks' information, I downgraded from 3.18 to 3.17.3 without doing a factory reset, although I unpatched first. Turns out that I'm getting a double flash (no black bar) occasionally upon chapter changes that I don't remember getting before on 3.17.3, so I'll now try to restore 3.17.3 after a full factory reset and report what happens. The tip above to simply copy your books first makes it easier, for sure.
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Not only the books, just everything, but be aware that when you downgrade to far the database file "might" be not supported (until now reverting to 3.15 works without problems,never tried to go back more then that.)
So
all directory's and subdirectory's and all files in it,then you have your covers,databases,books,settings.. etc..