Originally Posted by Chuckels550
I think that Calibre has an issue with Sleep mode on the Kobo. If the device is in sleep mode when I set up for USB connection then the metadata.calibre file is not available for updates. If the Kobo device is powered off mode, then there doesn't seem to be an issue.
It's like the old Doctor! Doctor! joke.
: Doctor! Doctor! it hurts when I do this.....
: Then don't do that!
Bottom line though is you have solved your own problem. You have a Kobo problem, if it doesn't work in sleep mode don't use it in sleep mode. The Jetbook Lite is the same way, prior to connecting I disable sleep mode or it may go to sleep prior to finishing what I want done.