Newer Kindles don't let Calibre create collections at all.
The most recent official DXG FW is the ancient 2.5.8, I think. Possibly due to a lack of RAM as the older KK3 has better and newer FW.
There is no Calibre setting that affects this. A setting (or DXG clock & date) is wrong on the Kindle. I have a DXG and it's a pain when the battery goes flat. I ought to get the USB networking installed so I can set the time & date directly, otherwise it takes about a day on the GSM/3G.
I was able to Jailbreak, but I found the USB network install confusing, there seemed to be only a DX version.
Last edited by Quoth; 09-18-2021 at 07:28 AM.
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