Originally Posted by bluema
Maybe wrong format...
Using Calibre , You can convert any format [like epud , pdf] to "mobi" , works for my Kindle Fire , the cover art is there.
No, issue was once you did that, you couldn't download different cover and update it on kindle. You were always stuck with initial cover, even if you deleted the book and upload the one with different cover.
Luckily, deleting local data for some system apps allowed covers to be rebuilt.