Serial No. starts with G090 G105.
I started this whole exercise because Calibre doesn't communicate at all with PW3 when I wanted to add my own collections to the device.
The Jailbreak I've used is posted here:
http://www.ereader-palace.com/how-to...e-2016-method/
After that, I went on to
http://www.ereader-palace.com/4-must...eaking-kindle/ and installed KUAL, the Helper and MRPI
The KUAL installer zip contains the
Booklet bin v2.7, not the kindlet. and then used
KUAL-KDK-2.0.azw2 to start up KUAL.
I've tried the Collections manager from ixtab (
https://www.mobileread.com/forums/sho...d.php?t=186305), failed with "unsupported firmware"
Next I've installed the python package and librariansync as described already above. After a day of reading through walls of text and laboring fruitlessly I've just decided to spend an hour to manually create the collections I want on the device itself. Comparing both efforts, the hour long tapping on the kindle came out way ahead of this