[cybmole]

update: soft reset does not fix it either.

I did have ( yesterday ) a problem book that was crashing the reader. I traced the problem to one very complicated line, full of spans, breaks etc, & when I broke that into several smaller lines the book was OK. ( the complex line also crashed ADE2 on PC , even though it appeared to be valid Code, sigil book view was OK with it ) )
Anyway, I had been trying to create a bookmark just before the crash page, to help with debugging/testing & I guess that is what has damaged the notes database.

I cant seem to find hard reset instructions; sony site has broken links.

I'd prefer to try deleting the notes.db file first, if that is what it's called - assuming that is safe.