Quote:
Originally Posted by Rid
I am one of those people that every month the sync stops working and it can drain the battery from 90% to 10% in 30min. I usually have to delete the larger collections to get it working again.
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I have the same problem. I think this is caused by database corruption in the encrypted database.
Another way to fix it is to use calibre to back up the database daily, and when sync stops working, unpack the backup calibre made from the day of (or day before) the last successful sync, and replace the KoboReader.sqlite and BookReader.sqlite on the device and reboot it and let it re-import the books you've added since, and then use calibre to update the bookmarks for books you've read since.
This has worked a few times for me now, and is a lot better than doing a factory reset or deleting lots of stuff and putting it back.