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Originally Posted by youngmax
I don't actually have a list of when the various firmware updates came out, but the old device was using the most recent firmware as of March, and I got the new device shipped on May 3rd. I don't recall the notification of an updated Kobo Utilities plugin in that time (it just happened in the past two weeks, right?) so I assumed they were both on 3.19.5613. The DB restore did eventually work on that version, for weeks, until I allowed the device to upgrade to the latest version which immediately broke it.
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Firmware 3.19.5613 was out by early December 2015, version 3.19.5761 was out by.early January 2016.
Is it possible the new device was runing 3.19.5761 but you applied a patch for 3.19.5613? I don't know what would happen in that case, usually the device wouldn't boot, but if it did there would certainly be problems at some point.
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Unless there is a way to transfer reading positions to a new database (I'd survive losing my annotations), it sounds like a firmware downgrade and reattempting the DB copy is my best approach. Does this require cracking open the case?
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I haven't done a downgrade for a very long time so I don't know for sure. It should be possible to downgrade without opening the case, but it might depend on which firmware was on the device to start with. If the device comes with an older firmware version then it is easy enough to upgrade from there to another later version instead of the very latest version. It is not always possible to cleanly downgrade to an earlier version than the one the device comes with from the factory. Others have reported that it works, but you don't know for sure if it has really worked or if there was a problem that you just haven't come across yet.