Kindle 4 PC only shows covers, if the mobi-asin in the exth 113 is set to the correct B0xxxx asin.
1. I edited the metadata IDs field in calibre and then tried
- save to single dir (which was the K4PC dir)
- convert MOBI2MOBI and save the new .mobi to K4PC dir
2. I tried QualityPlugin "Fix KindleFire asin"
Neither way I get the B0xxx to 113. I checked this with MobiMetaEditor. If I directly edit the .mobi with this tool everything is fine ...
Interesting discussion, where they say it would be also ok just to have 113 empty
http://www.amazon.com/forum/kindle/r...x2XULZG8JNK3K0
BTW: Mobi2Mobi perl tool seems to have problems since quite a while:
https://www.mobileread.com/forums/sho...07#post2027407
So how can achieve this using calibre ?