Originally Posted by chrox
Someone has reported that KPVBooklet works fine in 5.1.2 with djvu and epub documents. But it cannot be confirmed by myself since I don't have a KT device. Probably you can also fix it by updating your Kindle to 5.3.2. As far as I know KPVBooklet works better in 5.3.X firmware.
It might be me reported
. But KPVBooklet didn't work as-is in 5.1.2, I've needed to apply some adjustments (listed in linked post). Also obfuscation in new firmwares, including 5.3.2 for KT, changes Java classes' names in every new firmware version, so I doubt that KPVBooklet will work as-is in 5.3.2 (but I didn't check).
Ah, I see KPVBooklet made nice progress and declares to support KT 5.1.2 out of box. Great, thanks!