I've used Calibre since I bought my first SONY-PRS-T1 without problems. I plug in my brand new Clara-2E and get the following:
calibre, version 6.7.1
WARNING: Failed: Kobo database version unsupported - See details
Your Kobo is running an updated firmware/database version. As calibre does not know about this updated firmware, database editing is disabled, to prevent corruption. You can still send books to your Kobo with calibre, but deleting books and managing collections is disabled. If you are willing to experiment and know how to reset your Kobo to Factory defaults, you can override this check by right clicking the device icon in calibre and selecting "Configure this device" and then the "Attempt to support newer firmware" option. Doing so may require you to perform a Factory reset of your Kobo.
Discussion of any new Kobo firmware can be found in the Kobo forum at MobileRead. This is at
https://www.mobileread.com/forums/fo...play.php?f=223.
Device database version: 174.
Device firmware version: 4.37.21586
I need to fix it or get rid of the Clara 2E and go back to my Sony.
Thanks