Quote:
Originally Posted by Hellioness
Double check that DeDRM still has your kindle key saved, I had that same issue, for some reason after a reboot DeDRM no longer had my key and I had to add the backup file again, worked fine after that.
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I was having trouble creating backup.ab at "Command prompt", as every attempt came up with a file size of 0 kb. I also redownloaded the problem ebook into Bluestacks 5 Kindle for Android. Finally I got a backup.ab file with a sensible amount of data in it, but could not add it to the plugin in Calibre.
I then decided to uninstall Calibre 6.17 and reinstall it. I then added the DeDRM 7.2.1 plugin for Calibre again. I had a bit of trouble working out where to add the backup.ab file in Calibre, but finally worked out I needed to only show the list of user-added plugins. The "file type" plugin was the one that contained DeDRM 7.2.1, so I was then able to add the newly created backup.ab file, and Calibre is now working as expected to deDRM an Amzon .prc format ebook (as azw3 in Calibre), and convert to ePUB and other formats as expected.
Thank you for the advice.