Thank you for the reply: here are some answers:- As you are using calibre to put it on the device, have you checked that the file has been copied to the device? Make sure it is actually on the drive of the device.
Yes. Using File Maanger I can see it.
- When you disconnect the device, does it show the processing screen?
No, but it comes and says you can disconnect device.
- When you reconnect the device, is the epub still on it? I'm expecting that it will have been deleted by the processing.
In file manager yes, but not in Calibre Device Window.
I get no problem found in validating with Sigil. I attach epub.
Thanks for looking at this