Kindle firmwares were written with the assumption that no one else is manipulating CDETYPE. amazon also made the customer hostile decision to not show cover thumbnails for personal documents. The latter led to the former happening.
Kindle syncing firmware is closed source. Changing the syncing firmware would require decompiling obfuscated java and changing it.
There are several known "fixes".
1. Don't muck with CDETYPE.
2. Keep wifi always off
3. Keep wifi frequently on.
4. Only use "send to kindle" or similar to load books.
|