[flowoeB]

k, here's what i did so far:

talked to amazon - they don't give a shit
talked to the publisher - they know of the problem but amazon is not responding to them (for over a year now!)
switched to a kindle scribe (didn't change sh*t)

so i tried to find out what's happening...

if you put an azw3 file to your kindle (via usb or download), as soon as you sync it will get converted to kfx file format. this is when things get messy and the books get ruined. looks like the kindle has to be online for this (most likely a drm thing).

i found a temporary solution in write protecting the azw3 file before conversion. this creates an error (at least a file with error in it's name) and the kindle keeps using the azw3 file. up till now it works.

so amazon is fighting piracy by f**king their paying customers in the... thank you for that!

anybody with more know how to find a better solution?

here's my how to:
.take your kindle offline
.remove every wifi password so it can't get online again
.download the manga to your pc
.put it into the 'documents' folder on your kindle via usb
.make the files inside your 'documents' folder 'read only' (writeprotected)
.read your manga
.optional: f**k amazon and buy your books elsewhere