In 'Meta Data' removed existing cover and pointed to new cover which was/is 600x800 pixels, jpg, same as original just added a serial number of my own. Used Mobi MetaData to change/add the ASIN (nb deleted existing one that was very long and bore no similarity to the Amazon Kindle ASIN). Started by removing/deleting all? traces of earlier attempts on the Kindle and also scrubbed the calibre library on the pc. To get here I did the following - so Please if you see an error/omission point it out - or obviously a better way to achieve a full sized cover, no banner etc or as it should be !! The book opens and functions - though I haven't checked the bookmark.
Ok, the struggle continues - now faced with a full sized generic cover, no white banner at foot, instead white box central giving the title and Author info. (Don't forget the delete/unplug thing if you're doing this on the same books over and over, the Kindle gets confused (and breaks the thumbnails, basically) when you switch files without letting it know they were gone first). Convert via Calibre, of tweak the metadata manually to add an ASIN ]).Ĭheck that your files were built properly (*without* 'Enable sharing') (you can even go so far as to check the metadata of the files on your device with MobiUnpack if you're still not convinced), and that you're using Calibre's "Send To Device" over USB in a recent Calibre version. (If those files were built by KindleGen, on the other hand, then it's perfectly normal. If you end up with smaller covers and a PDOC banner, it means that your files don't have an ASIN set (exth 113) in the metadata, which, if you're using Calibre to build your mobi/azw3, means they were built *WITH* the 'Enable sharing' setting checked.