Comment 2 for bug 1690740

Sorry, I am not quite sure what you are saying here.

Firstly, to clear up some things: Which Kobo device and firmware? Which version of Windows and is it up to date for all fixes? Which version of calibre?

I think you are saying that you can start calibre, connect the device and everything works OK. But if you close calibre, the device gets ejected. Is that correct? If so, that is very unusual. I've never seen calibre eject the device except by using the options in calibre. And I frequently close and restart calibre without ejecting or disconnecting my Kobo devices and calibre continues to see them properly.

If the device does get ejected, you will need to unplug and plug the device in again. And press the connect button on the device before the PC will see it. That is simply how these devices work.

If the device configuration is not being saved, that suggests there is a problem with the configuration. I made a big change to the configuration dialog and how the configuration was last year. Unfortunately, I made a mistake in migrating the configuration if the configuration hadn't been changed for a long time. I fixed these problems for most circumstances, but there are probably some that cannot be fixed. If this is the problem, there should be an error displayed when opening or saving the driver configuration. At this point, the best thing to do is to delete the configuration file and redo it. To do this, open the calibre preferences and go to the "Miscellaneous" page. On this, click the "Open calibre configuration directory" button. Close calibre before doing anything else. In the open directory, find the file "device_drivers_KOBOTOUCH.py" and delete it. When you open calibre, the KoboTouch driver configuration will be set to the default. You will need to change it to what you need.

Calibre should be able to connect to the device as soon as it is connected. But, if there are errors on the file system, these should be fixed before doing anything with the connected device. If you see the "scan device for errors", you should get Windows to search for an fix any errors before using the device. If you are constantly seeing this, it usually means the device is not being ejected properly. If you are sure it is, it might mean internal storage is failing. If this is a Kobo device with an internal SD card, it can be replaced.